Modify the .car files to your liking
I hope you are successful in this exciting work, I know how to change the .car files with ThemeEngine, but I don't understand the process," Modify the .car files to your liking" is the .car file of the app that we want to change the icon, for example "Music.app/Contents/Resources/Assets.car"
This can not theme an apps icon that is shown in other apps.
This just loads the supplied car file when the app checks its NSAppearance.
https://stackoverflow.com/questions/19780577/how-can-i-make-an-appearance-file-for-nsappearance
@w0lfschild there is a project called macos-custom-gui, which changes the radii of the window frame, can Paint Can do this? If this feature was to be added to Paint Can it would make it easier to mod. the radii of all window frames, which is is exactly the whole point of of macos-custom-gui is. As a tiling wm user, right angles it imperative otherwise look really odd.
@drewauff
I dunno. Why don't you just try it and find out yourself? I assume you meant https://github.com/tsujp/custom-macos-gui