Greaver it seems it's very unrelated to C2, it's about game design.
I would like to explain about the results, look this:
http://powerupware.com/HTML5/zoompng/
The default on start layout is scale 1.0
Click anywhere to zoom, there are 3 sprites
2 Dark blue ones in left and right and one pink.
the left one uses screen resolution, if we try to zoom, it looks blurred and isn't part of high definition.
the right one uses bigger size than the left one , we try to reduce its size in editor, then zoom again it looks fine but aliased.
the pink uses higher version of bit for PNG (I don't recall about numbers) it looks definetly HD, but it consumes more memory.
I hope you understand this method.