I disagree about usability. Probably most people just used MS Paint first. MS Paint has different tools and different brush-tip (widths) for pencil/brush/spray-

I disagree about usability. Probably most people just used MS Paint first. MS Paint has different tools and different brush-tip (widths) for pencil/brush/spray-can/eraser that all do essentially the same thing (okay, the eraser's right click mode is different, but hardly anyone knows about it), and then the line/curve/box tools all have _their_ own width. This is all unified into one global brush/pattern option in mtPaint that everything uses. The zoom levels are better too. I think the only thing that's not obvious in mtPaint is the eyedropper. The one thing I like in MS Paint is the controls to resize the canvas near its edges. Most other programs make you go through a dialog or select and then trim to selection.