Thank you for your feedback! The reason is half ease of use and half me being in a rush. Originally, the circle select tool did work like the rectangle tool, but constrained to have a constant radius. After some testing, it became apparent that the awkward snapping caused by this restriction wasn’t worth the consistency. Turns out the problem of smooth elliptical selection is less trivial than I once thought. Once I got used to the new system I found that it was actually faster than my previous setup. I did worry about the inconsistency being confusing to new players, but figured it wouldn’t be a problem. In post-jam testing, however, it became apparent that it was actually was an issue when everyone I watched playing struggled with selection the first time around. It didn’t help that I made the late addition of the undo button being an unlockable upgrade which requires you to make a few paintings before being able to afford it. I’m glad you enjoyed the game despite that!