I'm going to let you see the magic I found. Others have probably found it, but I'm not sure.
for science:
Code:
/opt/eink/scripts/diags
Also, notice that /opt/eink/images has wbf files in it. I'm assuming that those are the "your kindle is broken" or "update sucessful" images. I have never seen the wbf format before... Time for some googling...