I am hope I am using the right terminology, but I am referring to the area where line numbers are and version control colors appear.
I'd like to be able to control the size of this area. It seemed to jump to a wider area when I recently upgraded from a past phpstorm version. This seems like it may be because of version control colors no longer overlapping with icons like the icon for overwriting a parent class's methods. Is there anyway to make the gutter more compact (without getting rid of line numbers)?