Samsung's quick settings toggles are insanely useful for accessing settings that you would normally need to dig into menus for. Definitely a case of function over form, though. TouchWiz's bright green on dark blue has to be one of the fugliest color combinations I have ever seen.
Luckily, there's an Xposed module out there we can use to change the colors of our toggles. It works great if you've themed your phone and want to make your quick toggles blend in with the rest of your Samsung Galaxy S4.
Prerequisite: Rooted GS4 with Xposed Framework
If you haven't rooted your phone yet... more