diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/examples/index.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/examples/index.js
new file mode 100644
index 000000000000..6b8641b0fe34
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/examples/index.js
@@ -0,0 +1,27 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var Layout = require( './../lib' );
+
+var layout = new Layout({
+	'columns': 2
+});
+
+console.log( layout.toJSON() );
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/get.js
new file mode 100644
index 000000000000..68158dfd2310
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the grid alignment.
+*
+* @private
+* @returns {(string|Object)} grid alignment
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/properties.js
new file mode 100644
index 000000000000..d8b59b16570b
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'align' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/set.js
new file mode 100644
index 000000000000..11b40788252f
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/align/set.js
@@ -0,0 +1,64 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isGridAlignment = require( '@stdlib/plot/vega/base/assert/is-grid-alignment' );
+var isObject = require( '@stdlib/assert/is-object' );
+var join = require( '@stdlib/array/base/join' );
+var gridAlignments = require( '@stdlib/plot/vega/base/grid-alignments' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the grid alignment to apply to rows and columns.
+*
+* @private
+* @param {(string|Object)} value - input value
+* @throws {TypeError} must be a grid alignment or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isGridAlignment( value ) && !isObject( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be one of the following: "%s", or an object. Value: `%s`.', prop.name, join( gridAlignments(), '", "' ), value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/get.js
new file mode 100644
index 000000000000..0a7e4fd8996e
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the bounds calculation method.
+*
+* @private
+* @returns {string} bounds calculation method
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/properties.js
new file mode 100644
index 000000000000..3e4b4f1c23ae
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'bounds' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/set.js
new file mode 100644
index 000000000000..89950449b1ae
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/bounds/set.js
@@ -0,0 +1,63 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isLayoutBound = require( '@stdlib/plot/vega/base/assert/is-layout-bound' );
+var join = require( '@stdlib/array/base/join' );
+var layoutBounds = require( '@stdlib/plot/vega/layout/bounds' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the bounds calculation method to use for determining the extent of a sub-plot.
+*
+* @private
+* @param {string} value - input value
+* @throws {TypeError} must be a supported bounds calculation method
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isLayoutBound( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be one of the following: "%s". Value: `%s`.', prop.name, join( layoutBounds(), '", "' ), value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', this[ prop.private ], value );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/get.js
new file mode 100644
index 000000000000..188d68c073d1
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the flag indicating whether to center child elements.
+*
+* @private
+* @returns {(boolean|Object)} flag indicating whether to center child elements
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/properties.js
new file mode 100644
index 000000000000..a6564ba4b230
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'center' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/set.js
new file mode 100644
index 000000000000..67499bc0cd30
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/center/set.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var isObject = require( '@stdlib/assert/is-object' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets a boolean flag (or row/column object) indicating whether to center child elements within their respective rows and columns.
+*
+* @private
+* @param {(boolean|Object)} value - input value
+* @throws {TypeError} must be a boolean or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isBoolean( value ) && !isObject( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a boolean or an object. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/change_event.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/change_event.js
new file mode 100644
index 000000000000..a06740194846
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/change_event.js
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns a new change event object.
+*
+* @private
+* @param {string} property - property name
+* @returns {Object} event object
+*/
+function event( property ) { // eslint-disable-line stdlib/no-redeclare
+	return {
+		'type': 'update',
+		'source': 'layout',
+		'property': property
+	};
+}
+
+
+// EXPORTS //
+
+module.exports = event;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/get.js
new file mode 100644
index 000000000000..1b168df12524
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the number of columns.
+*
+* @private
+* @returns {(number|void)} number of columns
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/properties.js
new file mode 100644
index 000000000000..5b18349782bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'columns' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/set.js
new file mode 100644
index 000000000000..a2ca76e91ded
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/columns/set.js
@@ -0,0 +1,66 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ).isPrimitive;
+var isUndefined = require( '@stdlib/assert/is-undefined' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the number of columns to include in the grid layout.
+*
+* ## Notes
+*
+* -   Providing `undefined` "unsets" the configured value.
+*
+* @private
+* @param {(NonNegativeNumber|void)} value - input value
+* @throws {TypeError} must be a nonnegative number
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isNonNegativeNumber( value ) && !isUndefined( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a nonnegative number. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', this[ prop.private ], value );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/defaults.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/defaults.js
new file mode 100644
index 000000000000..aef7c39130c4
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/defaults.js
@@ -0,0 +1,64 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns defaults.
+*
+* @private
+* @returns {Object} default options
+*
+* @example
+* var o = defaults();
+* // returns {...}
+*/
+function defaults() {
+	return {
+		// Grid alignment to apply to rows and columns:
+		'align': 'none',
+
+		// Bounds calculation method to use for determining the extent of a sub-plot:
+		'bounds': 'full',
+
+		// Boolean flag indicating whether to center child elements within their respective rows and columns:
+		'center': false,
+
+		// Alignment of footers relative to their bands (`null` indicates positioning using the coordinate of the nearest grid content cell):
+		'footerBand': null,
+
+		// Alignment of headers relative to their bands (`null` indicates positioning using the coordinate of the nearest grid content cell):
+		'headerBand': null,
+
+		// Offset (in pixels) by which to displace header, footer, and title cells from the edges of the grid:
+		'offset': 0,
+
+		// Anchor position for placing titles relative to their bands:
+		'titleAnchor': 'start',
+
+		// Alignment of titles relative to their bands:
+		'titleBand': 0.5
+	};
+}
+
+
+// EXPORTS //
+
+module.exports = defaults;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/get.js
new file mode 100644
index 000000000000..b7c7309b1f69
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the footer band alignment.
+*
+* @private
+* @returns {(number|Object|null)} footer band alignment
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/properties.js
new file mode 100644
index 000000000000..bc58648b6693
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'footerBand' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/set.js
new file mode 100644
index 000000000000..835e5f1b2201
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/footer-band/set.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ).isPrimitive;
+var isObject = require( '@stdlib/assert/is-object' );
+var isNull = require( '@stdlib/assert/is-null' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the alignment (in the range `[0,1]`) of footers relative to their bands.
+*
+* ## Notes
+*
+* -   Providing `null` positions the footer using the coordinate of the nearest grid content cell.
+*
+* @private
+* @param {(NonNegativeNumber|Object|null)} value - input value
+* @throws {TypeError} must be a nonnegative number, null, or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isNonNegativeNumber( value ) && !isObject( value ) && !isNull( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a nonnegative number, null, or an object. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/get.js
new file mode 100644
index 000000000000..e16fc0c38ad9
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the header band alignment.
+*
+* @private
+* @returns {(number|Object|null)} header band alignment
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/properties.js
new file mode 100644
index 000000000000..0b9b080cdaa3
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'headerBand' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/set.js
new file mode 100644
index 000000000000..5b81ec75497e
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/header-band/set.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ).isPrimitive;
+var isObject = require( '@stdlib/assert/is-object' );
+var isNull = require( '@stdlib/assert/is-null' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the alignment (in the range `[0,1]`) of headers relative to their bands.
+*
+* ## Notes
+*
+* -   Providing `null` positions the header using the coordinate of the nearest grid content cell.
+*
+* @private
+* @param {(NonNegativeNumber|Object|null)} value - input value
+* @throws {TypeError} must be a nonnegative number, null, or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isNonNegativeNumber( value ) && !isObject( value ) && !isNull( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a nonnegative number, null, or an object. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/index.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/index.js
new file mode 100644
index 000000000000..4dcbebfdad01
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/index.js
@@ -0,0 +1,42 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Layout constructor.
+*
+* @module @stdlib/plot/vega/layout/ctor
+*
+* @example
+* var Layout = require( '@stdlib/plot/vega/layout/ctor' );
+*
+* var layout = new Layout({
+*     'columns': 2
+* });
+* // returns <Layout>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/main.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/main.js
new file mode 100644
index 000000000000..437f7a9b0ba7
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/main.js
@@ -0,0 +1,391 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-restricted-syntax, no-invalid-this, stdlib/no-empty-lines-between-requires */
+
+'use strict';
+
+// MODULES //
+
+var EventEmitter = require( 'events' ).EventEmitter;
+var logger = require( 'debug' );
+var isObject = require( '@stdlib/assert/is-object' );
+var setNonEnumerableReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var setNonEnumerableReadOnlyAccessor = require( '@stdlib/utils/define-nonenumerable-read-only-accessor' ); // eslint-disable-line id-length
+var setReadWriteAccessor = require( '@stdlib/utils/define-read-write-accessor' );
+var hasProp = require( '@stdlib/assert/has-property' );
+var inherit = require( '@stdlib/utils/inherit' );
+var objectKeys = require( '@stdlib/utils/keys' );
+var transformErrorMessage = require( '@stdlib/plot/vega/base/transform-validation-message' );
+var instance2json = require( '@stdlib/plot/vega/base/to-json' );
+var format = require( '@stdlib/string/format' );
+var properties = require( './properties.json' );
+var defaults = require( './defaults.js' );
+
+// Note: keep the following in alphabetical order according to the `require` path...
+var getAlign = require( './align/get.js' );
+var setAlign = require( './align/set.js' );
+
+var getBounds = require( './bounds/get.js' );
+var setBounds = require( './bounds/set.js' );
+
+var getCenter = require( './center/get.js' );
+var setCenter = require( './center/set.js' );
+var getColumns = require( './columns/get.js' );
+var setColumns = require( './columns/set.js' );
+
+var getFooterBand = require( './footer-band/get.js' );
+var setFooterBand = require( './footer-band/set.js' );
+
+var getHeaderBand = require( './header-band/get.js' );
+var setHeaderBand = require( './header-band/set.js' );
+
+var getOffset = require( './offset/get.js' );
+var setOffset = require( './offset/set.js' );
+
+var getPadding = require( './padding/get.js' );
+var setPadding = require( './padding/set.js' );
+var getProperties = require( './properties/get.js' );
+
+var getTitleAnchor = require( './title-anchor/get.js' );
+var setTitleAnchor = require( './title-anchor/set.js' );
+var getTitleBand = require( './title-band/get.js' );
+var setTitleBand = require( './title-band/set.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:main' );
+
+
+// MAIN //
+
+/**
+* Layout constructor.
+*
+* @constructor
+* @param {Options} [options] - constructor options
+* @param {(string|Object)} [options.align] - grid alignment to apply to rows and columns
+* @param {string} [options.bounds] - bounds calculation method to use for determining the extent of a sub-plot
+* @param {(boolean|Object)} [options.center] - boolean flag (or row/column object) indicating whether to center child elements within their respective rows and columns
+* @param {number} [options.columns] - number of columns to include in the grid layout
+* @param {(number|Object|null)} [options.footerBand] - alignment of footers relative to their bands
+* @param {(number|Object|null)} [options.headerBand] - alignment of headers relative to their bands
+* @param {(number|Object)} [options.offset] - offset (in pixels) by which to displace header, footer, and title cells from the edges of the grid
+* @param {(number|Object)} [options.padding] - padding (in pixels) between the rows and columns of the grid
+* @param {(string|Object)} [options.titleAnchor] - anchor position for placing titles relative to their bands
+* @param {(number|Object)} [options.titleBand] - alignment of titles relative to their bands
+* @throws {TypeError} options argument must be an object
+* @throws {Error} must provide valid options
+* @returns {Layout} layout instance
+*
+* @example
+* var layout = new Layout({
+*     'columns': 2
+* });
+* // returns <Layout>
+*/
+function Layout( options ) {
+	var nargs;
+	var opts;
+	var keys;
+	var v;
+	var k;
+	var i;
+
+	nargs = arguments.length;
+	if ( !( this instanceof Layout ) ) {
+		if ( nargs ) {
+			return new Layout( options );
+		}
+		return new Layout();
+	}
+	EventEmitter.call( this );
+
+	// Resolve the default configuration:
+	opts = defaults();
+
+	// Set internal properties according to the default configuration...
+	keys = objectKeys( opts );
+	for ( i = 0; i < keys.length; i++ ) {
+		k = keys[ i ];
+		this[ '_'+k ] = opts[ k ];
+	}
+	if ( nargs ) {
+		if ( !isObject( options ) ) {
+			throw new TypeError( format( 'invalid argument. Options argument must be an object. Value: `%s`.', options ) );
+		}
+		// Validate provided options by attempting to assign option values to corresponding fields...
+		for ( i = 0; i < properties.length; i++ ) {
+			k = properties[ i ];
+			if ( !hasProp( options, k ) ) {
+				continue;
+			}
+			v = options[ k ];
+			try {
+				this[ k ] = v;
+			} catch ( err ) {
+				debug( 'Encountered an error. Error: %s', err.message );
+
+				// FIXME: retain thrown error type
+				throw new Error( transformErrorMessage( err.message ) );
+			}
+		}
+	}
+	return this;
+}
+
+/*
+* Inherit from the `EventEmitter` prototype.
+*/
+inherit( Layout, EventEmitter );
+
+/**
+* Constructor name.
+*
+* @private
+* @name name
+* @memberof Layout
+* @readonly
+* @type {string}
+*/
+setNonEnumerableReadOnly( Layout, 'name', 'Layout' );
+
+/**
+* Grid alignment to apply to rows and columns.
+*
+* @name align
+* @memberof Layout.prototype
+* @type {(string|Object)}
+* @default 'none'
+*
+* @example
+* var layout = new Layout({
+*     'align': 'each'
+* });
+*
+* var v = layout.align;
+* // returns 'each'
+*/
+setReadWriteAccessor( Layout.prototype, 'align', getAlign, setAlign );
+
+/**
+* Bounds calculation method to use for determining the extent of a sub-plot.
+*
+* @name bounds
+* @memberof Layout.prototype
+* @type {string}
+* @default 'full'
+*
+* @example
+* var layout = new Layout({
+*     'bounds': 'flush'
+* });
+*
+* var v = layout.bounds;
+* // returns 'flush'
+*/
+setReadWriteAccessor( Layout.prototype, 'bounds', getBounds, setBounds );
+
+/**
+* Boolean flag (or row/column object) indicating whether to center child elements within their respective rows and columns.
+*
+* @name center
+* @memberof Layout.prototype
+* @type {(boolean|Object)}
+* @default false
+*
+* @example
+* var layout = new Layout({
+*     'center': true
+* });
+*
+* var v = layout.center;
+* // returns true
+*/
+setReadWriteAccessor( Layout.prototype, 'center', getCenter, setCenter );
+
+/**
+* Number of columns to include in the grid layout.
+*
+* @name columns
+* @memberof Layout.prototype
+* @type {(number|void)}
+*
+* @example
+* var layout = new Layout({
+*     'columns': 2
+* });
+*
+* var v = layout.columns;
+* // returns 2
+*/
+setReadWriteAccessor( Layout.prototype, 'columns', getColumns, setColumns );
+
+/**
+* Alignment (in the range `[0,1]`) of footers relative to their bands.
+*
+* @name footerBand
+* @memberof Layout.prototype
+* @type {(number|Object|null)}
+* @default null
+*
+* @example
+* var layout = new Layout({
+*     'footerBand': 0.5
+* });
+*
+* var v = layout.footerBand;
+* // returns 0.5
+*/
+setReadWriteAccessor( Layout.prototype, 'footerBand', getFooterBand, setFooterBand );
+
+/**
+* Alignment (in the range `[0,1]`) of headers relative to their bands.
+*
+* @name headerBand
+* @memberof Layout.prototype
+* @type {(number|Object|null)}
+* @default null
+*
+* @example
+* var layout = new Layout({
+*     'headerBand': 0.5
+* });
+*
+* var v = layout.headerBand;
+* // returns 0.5
+*/
+setReadWriteAccessor( Layout.prototype, 'headerBand', getHeaderBand, setHeaderBand );
+
+/**
+* Offset (in pixels) by which to displace header, footer, and title cells from the edges of the grid.
+*
+* @name offset
+* @memberof Layout.prototype
+* @type {(number|Object)}
+* @default 0
+*
+* @example
+* var layout = new Layout({
+*     'offset': 10
+* });
+*
+* var v = layout.offset;
+* // returns 10
+*/
+setReadWriteAccessor( Layout.prototype, 'offset', getOffset, setOffset );
+
+/**
+* Padding (in pixels) between the rows and columns of the grid.
+*
+* @name padding
+* @memberof Layout.prototype
+* @type {(number|Object|void)}
+*
+* @example
+* var layout = new Layout({
+*     'padding': 5
+* });
+*
+* var v = layout.padding;
+* // returns 5
+*/
+setReadWriteAccessor( Layout.prototype, 'padding', getPadding, setPadding );
+
+/**
+* Layout properties.
+*
+* @name properties
+* @memberof Layout.prototype
+* @type {Array<string>}
+*
+* @example
+* var layout = new Layout({
+*     'columns': 2
+* });
+*
+* var v = layout.properties;
+* // returns [...]
+*/
+setNonEnumerableReadOnlyAccessor( Layout.prototype, 'properties', getProperties );
+
+/**
+* Anchor position for placing titles relative to their bands.
+*
+* @name titleAnchor
+* @memberof Layout.prototype
+* @type {(string|Object)}
+* @default 'start'
+*
+* @example
+* var layout = new Layout({
+*     'titleAnchor': 'end'
+* });
+*
+* var v = layout.titleAnchor;
+* // returns 'end'
+*/
+setReadWriteAccessor( Layout.prototype, 'titleAnchor', getTitleAnchor, setTitleAnchor );
+
+/**
+* Alignment (in the range `[0,1]`) of titles relative to their bands.
+*
+* @name titleBand
+* @memberof Layout.prototype
+* @type {(number|Object)}
+* @default 0.5
+*
+* @example
+* var layout = new Layout({
+*     'titleBand': 0.5
+* });
+*
+* var v = layout.titleBand;
+* // returns 0.5
+*/
+setReadWriteAccessor( Layout.prototype, 'titleBand', getTitleBand, setTitleBand );
+
+/**
+* Serializes an instance to a JSON object.
+*
+* ## Notes
+*
+* -   This method is implicitly invoked by `JSON.stringify`.
+*
+* @name toJSON
+* @memberof Layout.prototype
+* @type {Function}
+* @returns {Object} JSON object
+*
+* @example
+* var layout = new Layout({
+*     'columns': 2
+* });
+*
+* var v = layout.toJSON();
+* // returns {...}
+*/
+setNonEnumerableReadOnly( Layout.prototype, 'toJSON', function toJSON() {
+	return instance2json( this, properties );
+});
+
+
+// EXPORTS //
+
+module.exports = Layout;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/get.js
new file mode 100644
index 000000000000..1ceb07e1f0af
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the offset.
+*
+* @private
+* @returns {(number|Object)} offset
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/properties.js
new file mode 100644
index 000000000000..d1b5fccec871
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'offset' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/set.js
new file mode 100644
index 000000000000..9eaf293c785b
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/offset/set.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
+var isObject = require( '@stdlib/assert/is-object' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the offset (in pixels) by which to displace header, footer, and title cells from the edges of the grid.
+*
+* @private
+* @param {(number|Object)} value - input value
+* @throws {TypeError} must be a number or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isNumber( value ) && !isObject( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a number or an object. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/get.js
new file mode 100644
index 000000000000..57b46daab8dd
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the padding.
+*
+* @private
+* @returns {(number|Object|void)} padding
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/properties.js
new file mode 100644
index 000000000000..7c8d98d6884c
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'padding' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/set.js
new file mode 100644
index 000000000000..e8e5d1a5414f
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/padding/set.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ).isPrimitive;
+var isObject = require( '@stdlib/assert/is-object' );
+var isUndefined = require( '@stdlib/assert/is-undefined' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the padding (in pixels) between the rows and columns of the grid.
+*
+* ## Notes
+*
+* -   Providing `undefined` "unsets" the configured value.
+*
+* @private
+* @param {(NonNegativeNumber|Object|void)} value - input value
+* @throws {TypeError} must be a nonnegative number or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isNonNegativeNumber( value ) && !isObject( value ) && !isUndefined( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a nonnegative number or an object. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/properties.json b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/properties.json
new file mode 100644
index 000000000000..cda5ad53473b
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/properties.json
@@ -0,0 +1,12 @@
+[
+  "align",
+  "bounds",
+  "center",
+  "columns",
+  "footerBand",
+  "headerBand",
+  "offset",
+  "padding",
+  "titleAnchor",
+  "titleBand"
+]
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/properties/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/properties/get.js
new file mode 100644
index 000000000000..f3cbb28454ea
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/properties/get.js
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var properties = require( './../properties.json' );
+
+
+// MAIN //
+
+/**
+* Returns the list of enumerable properties.
+*
+* @private
+* @returns {Array<string>} properties
+*/
+function get() {
+	return properties.slice();
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/get.js
new file mode 100644
index 000000000000..a8ce42b91369
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the title anchor position.
+*
+* @private
+* @returns {(string|Object)} title anchor position
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/properties.js
new file mode 100644
index 000000000000..0c5e8f5c97f8
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'titleAnchor' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/set.js
new file mode 100644
index 000000000000..c10970c28e6f
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-anchor/set.js
@@ -0,0 +1,64 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isAnchorPosition = require( '@stdlib/plot/vega/base/assert/is-anchor-position' );
+var isObject = require( '@stdlib/assert/is-object' );
+var join = require( '@stdlib/array/base/join' );
+var anchorPositions = require( '@stdlib/plot/vega/base/anchor-positions' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the anchor position for placing titles relative to their bands.
+*
+* @private
+* @param {(string|Object)} value - input value
+* @throws {TypeError} must be an anchor position or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isAnchorPosition( value ) && !isObject( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be one of the following: "%s", or an object. Value: `%s`.', prop.name, join( anchorPositions(), '", "' ), value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/get.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/get.js
new file mode 100644
index 000000000000..4e32e9c0bd6b
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/get.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the title band alignment.
+*
+* @private
+* @returns {(number|Object)} title band alignment
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/properties.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/properties.js
new file mode 100644
index 000000000000..943925a468a9
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/properties.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'titleBand' );
+
+
+// EXPORTS //
+
+module.exports = obj;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/set.js b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/set.js
new file mode 100644
index 000000000000..b70066e862ad
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/lib/title-band/set.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ).isPrimitive;
+var isObject = require( '@stdlib/assert/is-object' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:layout:set:'+prop.name );
+
+
+// MAIN //
+
+/**
+* Sets the alignment (in the range `[0,1]`) of titles relative to their bands.
+*
+* @private
+* @param {(NonNegativeNumber|Object)} value - input value
+* @throws {TypeError} must be a nonnegative number or an object
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isNonNegativeNumber( value ) && !isObject( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be a nonnegative number or an object. Value: `%s`.', prop.name, value ) );
+	}
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', JSON.stringify( this[ prop.private ] ), JSON.stringify( value ) );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;
diff --git a/lib/node_modules/@stdlib/plot/vega/layout/ctor/package.json b/lib/node_modules/@stdlib/plot/vega/layout/ctor/package.json
new file mode 100644
index 000000000000..f9301eabb446
--- /dev/null
+++ b/lib/node_modules/@stdlib/plot/vega/layout/ctor/package.json
@@ -0,0 +1,60 @@
+{
+  "name": "@stdlib/plot/vega/layout/ctor",
+  "version": "0.0.0",
+  "description": "Layout constructor.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "plot",
+    "vega",
+    "layout",
+    "constructor",
+    "ctor"
+  ],
+  "__stdlib__": {}
+}