I believe I had found the answer for that question already here in this forum but I can't retrieve it:
Where can I switch off the translucency of a resource navigator tab witch is undocked? - If a resource navigator tab like "Simulation Navigator" or "Assembly Navigator" is undocked from resource bar and not active it becomes translucent. How do I get rid of it?
I use NX10.
Any suggestion will help, Michael
Solved! Go to Solution.
Menu -> preferences -> user interface -> theme -> transparency -> turn off the "enable transparency for undocked UI components".