Windows 7 themes for other OS

(ot directly relavent to windows 7, I apologise if this is slightly off topic)

I am a fan of the windows 7 style, and I really want to recreate the look and feel on another OS. I wish I could just use the real deal as my main os, but the lack of software support is an issue for me. So I have settled on theming a different os to look like windows 7. Does anyone know of any theming guides? Would it be worth downgrading to windows 10 first and theming that? Thanks