website: add heading color for dark mode

Author: ruittenb

index.html

@@ -28,6 +28,7 @@
                 --secondary-color: #6b7280;
                 --accent-color: #e74c78;
                 --accent-color-rgb: 231, 76, 120;
+                --heading4-color: indigo;
                 --bg-color: #fff;
                 --text-selection: rgba(253, 129, 164, 0.7);
                 --link-color: hsla(220, 9%, 46%, 0.15);
@@ -41,6 +42,7 @@
                     --secondary-color: #8e94b6;
                     --accent-color: #e73495;
                     --accent-color-rgb: 231, 52, 149;
+                    --heading4-color: mediumorchid;
                     --bg-color: #111827;
                     --text-selection: rgba(231, 52, 149, 0.6);
                     --link-color: rgba(142, 148, 182, 0.2);
@@ -214,7 +216,7 @@ <h2>A macOS app to view, rename and navigate between Spaces (Virtual Desktops) i
                             class="svg-inline--fa fa-book Button_icon" role="img"
                             xmlns="http://www.w3.org/2000/svg" viewBox="90 60 450 550"
                         >
-                            <path d="M480 576L192 576C139 576 96 533 96 480L96 160C96 107 139 64 192 64L496 64C522.5
+                            <path fill="currentColor" d="M480 576L192 576C139 576 96 533 96 480L96 160C96 107 139 64 192 64L496 64C522.5
                                 64 544 85.5 544 112L544 400C544 420.9 530.6 438.7 512 445.3L512 512C529.7 512 544 526.3
                                 544 544C544 561.7 529.7 576 512 576L480 576zM192 448C174.3 448 160 462.3 160 480C160
                                 497.7 174.3 512 192 512L448 512L448 448L192 448zM224 216C224 229.3 234.7 240 248 240L424

spaceman.css

@@ -171,7 +171,7 @@ ul {
 
     & h4 {
         display: inline;
-        color: indigo;
+        color: var(--heading4-color);
         font-size: 1rem;
         font-weight: 700;
         margin-left: 0.5rem;