I'm a big fan of this plugin, so I'm gonna follow the development really closely. I thought I'd post another suggestion.
Could you make it so that the commands ("/xss....") don't show in the screenshots? I have to explain what they are and why I wrote that every time I send a screenshot
*edit* Btw, SS3 doesn't seem to save my screenshots in the specified folder... But since you're coding it from scratch, I guess that will be fixed.