Pupil

Consider me switched (from ResolutionTab). The ability to pick my most commonly used resolutions and see them all on a single menu is great.  ResolutionTab was nice, but the way it lists current and previous resolution then makes you dig into a sub-menu for all others is kind of a pain; plus you can't use muscle memory because the resolutions are always jumping around depending on which resolution is active.  

I do have two gripes with Pupil though.  

What's up with the spiral size? It doesn't seem to make any sense. The jump from 1280x800 ("Standard") to 1440x900 is not nearly as profound as the spiral would suggest.   It should start out large at the top (as it does) then slowly and consistently shrink to the smallest at the bottom (where the UI is the smallest).  The spiral should represent the size of the UI.

The "Retina Display Mode" header is completely unnecessary and adds no value.