Midi editor background color

How does one change the background color on the midi editor? In cubase 8 it was white, and that was realy comfortable to work with. Now its dark grey, and that makes it really annoying…

Preferences / Appearance / Editors / untick “Use Project Colors”

On my Cubase Pro 9.5 I found a setting at:
Preferences / User Interface / Custom Colors / Editor Area Background