I do not get that working for richtextcontrols (krools VBCCR)
None is working:
SetWindowTheme c.hWnd, StrPtr("DarkMode_DarkTheme"), 0&
SetWindowTheme c.hWndUserControl, StrPtr("DarkMode_DarkTheme"), 0&
SetWindowTheme c.hWnd, StrPtr("DarkMode_Explorer"), 0&
SetWindowTheme c.hWndUserControl, StrPtr("DarkMode_Explorer"), 0&

Can anyone please post code for that. Thank you