Help me fix Selection Range color

Please help - I change the brightness of audio and midi and saved the preferences. Then many of the colors in preferences user interface turned into grey and white checkered, so I clicked reset to defaults. they seemed to reset OK. But - now my Selection Range is not purple anymore, how can i fix that? it is a sort of charcoal grayish hard to see color - I can’t find the setting to fix? Does anyone know where that is? THANKS

it got worse and I posted it in different topic titled - Is this Graphics Bug known? Is this Graphics stuff known? - Cubase - Steinberg Forums