[JOdel]

>>*** ETA *** 'Help' on MS Paint says 'This Content is no longer available' - isn't that great? There is a 'Resize & Skew' function, but of course now there is no way of knowing if it will center an existing image if you change the size of the canvas ...<<

Sounds ominous. Resizing an image is not the same thing as resizing a canvas At All.

Hope it at least has more than one level of undo.