Get rid of the corners and use background instead in order to avoid those extra blank pixels?
This is indeed 1.6.0 business because 1. all MathNest has corners. These inner corners are there for good purposes that can not be achieved by background. 2. mathed draw() needs a lot of cleanup. It is non-trivial to add math background of mathed under focus because these insets are redrawn numerous times. Cheers, Bo
