Installed Mojave last night (updated from Mavericks) on a late 2012 Mac Mini with a Dell 24" IPS monitor. After the upgrade, the upper part of the desktop, especially where the Menu bars are appears blurry and washed out. I have the "beach" desktop background and the upper part of these screen and the menu area looks like a mix of white and blue instead of being a crisp white on Mavericks. It looks as if it is tinted blue. I have the appearance set to light, not the dark setting in the "general" section of systems preferences. It looks like there is color problem with the monitor that wasn't there before. Is there any fix to this problem?