Sharpening export PNG images

[handrawn]

I'm realising now that just doing drawings in xara as vectors does not produce the best images for icons.

There is a definite skill in being able to control the anti aliasing consistently so you get crisp clear images even at tiny resolutions. This is a bunch I pulled of my gmail page. They smiley face is around 19 x 19 pxls

that was the point of my post #26, though assuming you were experienced in the black art of antialias

again it is good that you found an explanation that works for you...