This article provides you with the options to change the color and icons of your Android apps.
How to change icon color in Samsung
By default, app icons on some Android phones, like the Pixel, are essentially unchangeable, both the color and the actual icon. Spotify, for example, is green and black, and there’s no easy way to change that.
However, there are some cases where the app lets you customize the icon from a selection of options. Or, the app has closer ties to your phone's settings than other apps, so if you change the color setting on your phone, the app color and icon style will change as well.
If all else fails, third-party apps can take care of the whole process for you via icon packs. You can customize the icon color and the entire icon image of the app that way.