[EXTENSION IDEA] Color Profiles

[ScratchFakemon]

What if there were a way to replace colors in a project with different ones?
A good example of this would be for a dark mode.
This extension would work by letting you create a color profile, which has the original color and the color you want to replace it with.
The extension comes with the Default profile--the same colors the project has. The creator of the project is responsible for the other profiles.
Here are some blocks it could have and how they could be used:

I only know how to develop basic extensions, so someone more experienced like @SharkPool-SP should handle this.

[yuri-kiss]

you can already do this with sharkpool's existing extensions and partially looks+, also this can just be done with some if checks and change blocks

[ScratchFakemon]

which extensions?