Improve quiz dialog display

Author: OpenHypervideo

src/_shared/types/ResourceQuiz/type.js

@@ -82,6 +82,8 @@ FrameTrail.defineType(
                                     content:       textDialog,
                                     modal:         true,
                                     classes:       'quizDialog',
+                                    titlebar:      false,
+                                    inheritTheme:  _btn.closest('.overlayContainer'),
                                     resizable:     false,
                                     closeOnEscape: false,
                                     position:      { my: 'center', at: 'center', of: _btn.closest('.overlayContainer') },
@@ -123,6 +125,8 @@ FrameTrail.defineType(
                                     content:       textDialog,
                                     modal:         true,
                                     classes:       'quizDialog',
+                                    titlebar:      false,
+                                    inheritTheme:  _btn.closest('.overlayContainer'),
                                     resizable:     false,
                                     closeOnEscape: false,
                                     position:      { my: 'center', at: 'center', of: _btn.closest('.overlayContainer') },