https://winaero.com/blog/change-color-of-inactive-title-bars-in-windows-10/
- Open Registry Editor
- Navigate to
HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM
- Create a new
DWORD (32-bit) value
with nameAccentColorInactive
- Edit the value data to your preferred color in format (BBGGRR) (e.g.
ff0000
is blue)