I was just going to ask that...
Thanks!
And Boltbait, could you please explain what does your actual plugin code does differently from the code used in the tutorial?
For the same movimentation of the sliders, the output is different for those codes. Actually, the first slider does not work at all for the tutorial's code (duno what I did wrong, but after adding the if (selectionRegion.IsVisible(x, y)) from your actual code, it started working).
But even with the addition of this and the other two extra lines from the actual code, the output is still different.
Ow, and btw, thanks for the tut, and mostly for Codelab!!!