Mobile: Tap the "Changer" Sprite. PC: Left Arrow (previous), Right Arrow (next), or Space (choose any style). Or just click the "Changer" sprite. (also, for the "Custom-Fied" part, I'll see if I can make it on my own, or on my memory. So, the result might be weird, or something) (UPDATE NOTE (10/25): Please note that I'll give you a different style, when remixing this project.
Credit to @Username_Tester for his thumbnail
