In OS X we can experiment this situation. Where the menu background color and the font color is the same.

This happens when:

  • In GiD, the option "Menu type" is set to "Mac OS X menu bar". This option can be set in the Preferences window (Utilities->Preferences...), in the "Graphical" branch

and

  • While we are using GiD, we change the color of the OS X menu bar and dock, located in System preferences->General

To fix this problem just restart GiD.