Quickly/easily configure the appearance of the generated web page when packaging for HTML5.
Customization includes background color, visibility of each toolbar button, button labels, transparent toolbar, and overlay toolbar (moves the toolbar above the rendered content to avoid wasting screen space).
For reference, this is what the toolbar looks like by default:
If you Icons only toolbar (hides text on buttons) and Transparent toolbar (buttons are transparent):
Overlay toolbar puts the toolbar over the content, which can look nice when using just icons and transparent buttons to limit how much it overlap with rendered content: