As the Title of this thread mentions: Adding Dark / Light mode Favicon options.
This can easily be done by adding the following code to the head content but would be a great addition to add support in Bootstrap Studio.
<link rel="icon" media="(prefers-color-scheme: dark)" sizes="16x16" href="assets/img/icon_dark.png">
<link rel="icon" media="(prefers-color-scheme: light)" sizes="16x16" href="assets/img/icon_light.png">