It would be handy if we could define a "file type default" for Save As.
Let me explain. In my workflow, I often keep two copies of each capture: (1) .snag version so that I can go back and edit the image and callouts if required; and (2) .PNG file that is needed to import the image into Word or PowerPoint.
This is inconvenient since it usually means that every time I click SaveAs, I have to manually change the type... from PNG to SNAG to PNG to SNAG, and so on. (Because I capture, save as SNAG file, then edit and save as PNG... and then start the cycle all over again.)
What would be nice is to have SaveAs default to PNG when I'm editing a SNAG file. And, for my workflow, I'd be to have new captures default to SNAG. (Fir those who prefer the current way Snagit works, you could offer the option of picking "last chosen file type".)