macmacosmenu bar
When the Mac OS menu bar fills up with too many icons on the upper right side, and begins to encroach on the space of the menu text, will the OS begin to make the menu bar taller and wrap the icons? Or will the icons simply overflow / overlay the menu text?
This question assumes that Bartender is not installed.
You can use Bartender to hide status menu items and menu extras.
Many applications have options to disable opening them at login or to hide the status menu items. You can also remove login items from System Preferences.
I don't think it's possible, but FastScripts does seem to use custom icons in the menu:
Best Answer
You can test it by changing your display resolution ;)
low resolution -> overlay
normal resolution