Now that we have a command to set the blendmode of a layer I could finish my little sharpen script. The effect is somewhat similar to a highpass sharpen.
Currently only works on a merged single layer image so do a merge all before running this script on a multi layered project.
If anyone wants to take a stab at getting it working on an animated layer feel free
Normally your browser should ask you to save the script somewhere when you click the link. If not, try right clicking on the script link and chose "save as" and save it in the TVPaint /george folder (Create the george folder if it's not there allready, mine wasn't)
After that, add a button in TVpaint and right click and select edit.. Then add an action line "set script" and choose the script.
Then you can just click the button to run it, if there's a new revision for some reason (to fix a bug for example) you can just overwrite the original script and don't have to mess with buttons and embedded scripts, remembering what button had what embedded script.