You can change nearly any desktop icon on both Mac and PC. To change desktop icons on a Mac, open the "Get Info" menu and paste in the picture you want to use. On a PC you'll need to make a .ICO file, ...
App icons are a little bit difficult in stock Android. You can’t change them natively, so you’ll need a third-party tool along with an icon pack in order to do it. Once you have everything ready, it’s ...