Looks very nice!
Some features which I think were missing from easel (but would be very helpful) are:
Zoom feature. Would be awesome I suppose
Optional snapping? (i.e when drawing a rectangle, it would snap to the various lines on the screen eg edge of chatbox. This could be optional tho
A feature in the menu system which would allow you to import a rectangle which is the exact size of chatbox, in the exact correct position (and/or equivalent for inventory, map, mainscreen etc).
ctrl-Z
ctrl-c & v
'Tis the end of the list which I can think of, fun times, im glad you're back
~apa