I'm just updated to Windows 11, and the first thing I've noticed is that Microsoft is a lot more stricter on which color scheme you can pick for your Windows theme. So now the color that I had on Windows 10 is now deemed too hard to read, and I cannot set it up as my theme. Is there any way to override this, and would this be a correct code? HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM AccentColor (DWORD) – your color in BGR (e.g. #FF0000 → 0000FF) ColorPrevalence (DWORD) – 1 HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize ColorPrevalence (DWORD) – 1 Edit This is a better way, but for some reason I can't edit exactly those blocked values of colors by Microsoft HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent