Increasing/Reducing color intensity and brightness

From the manual:-
" You can use the Options menu in the Project Colors dialog to fully customize the color palette."
In Cubase 12 I do not seem to have the option tab in my Project Colors dialog.
The Project colors setup has an options tab but nothing there for color intensity or brightness.
No problem for mix console its all there in Preferences.
Any ideas please.

I have old projects which show the lower color intensity, but I can no longer control this in Cubase 12. Please fix!