[DRAFT] Implement theme customization feature.

[ghost]

This PR is closed, as it is not a planned feature for RetroBar. You can use and modify the code on your own projects if you want.

What is this?
This is a feature for RetroBar that allows the customization of themes.
This version is working and can be used if someone wants to test it.
The goal is to allow user to modify themes directly from RetroBar settings.
Theme customizations are not saved to the original themes, instead they are saved to ThemeCustomizations.json.

Screenshot of current state:

TODO:
TODO: Add localization
TODO: Add better support for linear gradient colors
TODO: Clean and optimize code

[ghost]

List of some related issues\requests I found:

#901
#900
#850
#776
#423
#265

[xoascf]

It looks interesting, but for now the program has to fulfill a precise function, RetroBar is made to create a taskbar with specific themes and change basic settings, it does not create the themes, that depends solely on the designer's ability to edit XAML, otherwise it would be overkill. If submodules or plugins make it into RetroBar, something like this would come in handy, but for now it is just a block with appropriate dependencies to work as a taskbar replacement.

By the way, it would be preferable not to use other Git identities that have not worked on the code to commit to the repository.

[ghost]

It looks interesting, but for now the program has to fulfill a precise function, RetroBar is made to create a taskbar with specific themes and change basic settings, it does not create the themes, that depends solely on the designer's ability to edit XAML, otherwise it would be overkill. If submodules or plugins make it into RetroBar, something like this would come in handy, but for now it is just a block with appropriate dependencies to work as a taskbar replacement.

By the way, it would be preferable not to use other Git identities that have not worked on the code to commit to the repository.

Ok, thanks for the feedback :)

I will leave this here if someone wants to use it in the future. The code on this PR is free for everyone to modify/copy/use as they see fit.

Closed as not planned feature.