Over the years I've worked on a number of projects that involved
various 2D rendering operations. The usual cycle for such work is to
tweak rendering code, compile, run, examine the results using a
magnifier, and repeat until I'm happy with it. This certainly works,
but takes a bit longer than is ideal. When I needed to do a lot of
graphics tweaking for this years 'Extreme GUI Makeover' talk, I...
