Hello Michael,
I have found that Atto editor icons are mini plugins. You can find this structure in: lib/editor/atto/plugins/.
I tried to set a limit on the image plugin lib/edior/atto/plugins/image/yui/src/js/button.js
function image.onload = function()
on the variables currentwidth and currentheight
It doesn't work, I am trying to better understand the code from the button.js file.
I get this far
Catalin Baron Damaschin