Your comments

#1 reason to not upgrade to ST2 is UI font size. It's far to small on High DPI displays. This was solvable in ST1 by adjusting size.tabHeaderHeight, size.statusbarHeight, and size.toolbarHeight in Default.sublime-theme but there does not appear to be a way to migrate these settings to ST2

This is a top issue preventing me from moving to ST2 from 1.4. I'm not going to take a step backwards in functionality just for a new version number.