First of all, I love the script, but I have a question or two...
Is there any way to decrease the padding on the message box?
As seen in the screenshot (with white border added to the face png to better see where the edges are), the text starts out in the middle, which works ok when it's just one line, but with two it looks just weird. IMO, it's better to have it start near the top, since that looks ok with both one- and two-liners. Same with the face; the space above and to the left of it is far too much; I could easily decrease it by ten pixels each. (Also, that way the window wouldn't have to be huge to avoid cropping of the bottom of the image.)
I've been fiddling around with various numbers, but I don't seem to have found the one that controls that part =( Admittedly, it's pretty much the first time I'm looking at this scripting language, so I might be overlooking something totally obvious, but if anyone could help me out it'd be awesome.