Windows 10 has a system-wide "dark mode", which if supported by an app, can tell the app to use dark title bars, scrollbars, etc. In a fit of rage after staring at the blinding white titlebar on my Emacs frame, I researched the issue and implemented "dark mode" in Emacs for Windows (the rage had been building for years). Here is a work in progress, which seemingly works quite well, but needs a bit more work. Would anyone be able to help, or possibly help get such a feature merged in? See README.md in my fork: https://github.com/vsalvino/emacs Vince Salvino