A great Tutorial
This was a nice "SPRITE" tutorial on white spots A unique Tutorial you have presented here some items of visual could have a better interface of it all, These tutorials are pretty "NIFTY" and bring a sense of teaching wihch is pretty good I have learned off of these myself "BACK-IN-THE-DAY", but anyways you have presented some "NICE-ELEMENTS" here.
~~SUGGESTED IDEAS~~
Maybe an improved interface and more color to the outlook of it all.
~X~