Please steal hahaha
It's hard to say where the inspiration for the UI polishing came from.... I'm just coming up with ideas using the vocabulary I've accumulated over the years of web dev and by playing games / interacting with apps. Basically it's the same thing for you right now being inspired by some aspect of it. So we're all in this together, plagiarism is something entirely different.
“Good artists copy; great artists steal.” - Picasso