setShape currently uses co-ordinates which are relative to the sprite sheet.  This means additional javascript code is required in the application to change to co-ordinates for each image.  My app is using upwards of 40 icon images which are all the same actual shape, but 40 sets of co-ordinates are required.

The requirement to call setShape every time an image is changed, for example as a roll over, also causes problems with mouseout events.  See bug report 2628.

Could setShape be altered so that the co-ordinates it uses are relative to the icon image rather than the sprite sheet?