Color settings don't activate

[Bernaar]

Longtime TC UP user here.
However,since the 8.9 32 bit installation version,I can't get TC UP to use the light mode again for the full program gui,only the panels show up as 'white'.
The top menu still runs in dark mode,even if I replace the default settings with backup settings from v 8.8

[ULTIMA PRIME]

TC UP > Menu > Apperance > Colors > ...

or

TC UP > Menu > Configuration > Color > Dark Mode > ...

[Bernaar]

THX!
I never bothered looking into that section,as up until TC UP V 8.8,the fresh installation of a new TC UP version allowed choosing a color/background profile during install.
However,since v 8.9,it seems that the 'color' settings in the menu override the personal choice during installation of the new version of TC UP.