galaxy s4 changed colors after upgrade


Apr 28, 2015
Hello, my dad has a galaxy s4, and he recently updated something in the phone (probably an android update but im not sure) and from that moment the drop down window (the one with wifi bluetooth ect.) changed the colors from black and white so green and blue with which my dad is really uncomfortable with. How can I restore the colors for him?
That's the new default skin, part of Android's 5.0 Lollipop update, dubbed "Material Design". The intention was to make it brighter and more "fun". There is no way to change that in the default menus to my knowledge, although you can download various skins/themes that will change the overall look or color of the entire interface. Many of these require the use of launcher apps though, such as Apex, Nova, or Go Launcher.