So the toggle is to set the selected colour space option 'active'? If that's the case the toggle seems misaligned (one row below the colour space option with no description).
Furhtermore, the very next thing i notice is a return of considerable and continuous hickups in sound with livetv. Out of syncs are back as well.
Up until 8.90.5 LiveTV was the best i have ever seen in any libreelec build. This latest dev build regresses that area considerably.