The changes recently made to improve the height/width methods left behind some unused code, and some duplicate code. The attached file is from r6195...

I removed the unused "tl" and "br" variables.

I removed the "type" variable (which is exactly the same as "lower"), and replaced all usage of "type" with "lower."

I added a property lookup to the "height" and "width" methods. Currently if the "size" argument is undefined, the method is a getter. With this change, as a getter, the argument can be "padding" or "border" or "margin" or undefined. This allows the same behavior as achieved by the "inner..." and "outer..." methods.