Add option to change background color of the Review updates window

I can’t inspect updated components when the Figma theme (light or dark mode) clashes with the content. The same thing happens in the component playground on dev mode. This happens often because its common to have components with transparent backgrounds. Even when i change the theme whilst the window is open, this issue persists.


Suggested solution: light/dark theme toggle within these windows.

This has also been reported by:
Blagovirnyy_Roman
John_Marstall
Here:

and here: