This plug-in prompts for a directory then exports your channels as individual PNG files. This could be useful for preparing artwork for screen printing (silkscreen).
How to use:
1. Open the channels dialog
2. Create a new channel, selecting opacity and fill color
3. Perform creation/editing on channel
4. Repeat steps 2 and 3 as needed.
5. Run the filter
Remove the ".txt" extension from the file, and linux users be sure to flag the file as executable.
The plug-in requires Python. Please don't ask how to install Python support for GIMP - search the forum (I'm looking at you, Windows users ;)
This is part of a set of plugins called 'Silkscreen Tools' and installs to 'Filters->Silkscreen Tools->Separate to PNGs'.
TODO: add printer's marks and labels