This is kind of a prerelease that includes the still faulty pxl-Test( change. It will be a while before I can get back to work on it, so I will give these tips:
It currently does not properly pixel-test regions one pixel wide.
It automatically quits if it is out of bounds on the left and top (otherwises, it resizes the region which will not happen in the final version).
So to use it, pxl-Test('X,Y,H,W,0 (that is a zero). It will return the number of set pixels on the perimeter. This is also so that I can release my Gravity Jump program ^_^
(It also can have an optional argument for the buffer to test on)