Hi- You can import the png sequence directly into After Effects as an image sequence, with “force alphabetical order” checked. I tried opening in Photoshop (where I like to do the coloring) but photoshop won’t recognize the image sequence because of hold frames- the files are numbered sequentially, but hold frames have the word “hold” in the file name and that throws photoshop off. I was able to get around that by manually turning all the hold frames into originals before export from AP. It might be a nice feature in AP to have the option to convert all hold frames into originals with one command before exporting. Or maybe there’s another way around this I’m not seeing? At any rate, this program is GREAT and I look forward to more developments!!!