Playful mischief rather than genuine evil — the smiling devil horns signal cheeky troublemaking, flirtatious naughtiness, or a self-aware 'I'm being a little bad right now' vibe. It's rarely used to depict actual malice, functioning much more like a wink with attitude.
Keywords: demon, devil, evil, face, fairy, fairytale, fantasy, horns, purple, shade, smile, smiling, tale