Waveform Color Preference

I had to do a re-install of Nuendo and my preferences got trashed. I put most of them back. But I can’t remember where/what to adjust to get back my black waveform on gray background color scheme. Can someone here remind me how to do that? The white wave files are kind of disconcerting. Thanks!

Outline event data - ON. Colorize event background - OFF. Set color of all track to gray.

Thanks a lot!