I just want to add that Android has a barely documented feature "Resource Overlay", designed to allow OEMs to customize stuff. [0] is a quick tutorial, [1] a bi

I just want to add that Android has a barely documented feature "Resource Overlay", designed to allow OEMs to customize stuff. [0] is a quick tutorial, [1] a bit longer introduction. The focus on configuration instead of code should make security a bit easier. Obviously they made it near impossible for even more advanced users to use, so opening that up a bit would be a good first step... [0] https://code.tutsplus.com/tutorials/quick-tip-theme-android-with-the-runtime-resource-overlay-framework--cms-29708 https://code.tutsplus.com/tutorials/quick-tip-theme-android-... [1] https://developer.sony.com/posts/sony-contributes-runtime-resource-overlay-framework-to-android-code-example/ https://developer.sony.com/posts/sony-contributes-runtime-re...