Cubase 9 transparent background problem

Hey, is there any way of changing the transparent background and upper menu line to any full color?
I’ve updtated from C5 and it’s uncomfortable for me when there’s ‘no background’

Double clicking the title bar will toggle the desktop cover on and off.

I presume you are on Windows 7. You could set your theme to have solid bars by disabling transparency and switching it to a light color. It can be accessed with Right click desktop > Personalize…, I think.