Internal gui width
This setting determines with width of the openGL-based internal GUI in pixels. If you have objects with very long names, this might come in handy so you can see more of the names.
In the following images, notice the size of the GUI controls on the right:
# set to a positive integer width (in pixels) set internal_gui_width, int # for example; set the width to 446 pixels. set internal_gui_width, 446