Sprite Outliner Script
This gimp script easily creates a black outline to a sprite — with less than 2 clicks. However, it must be noted that the current version does not work well with bounded sprites as well as autotiles for example. This script works in RGB mode.
1.) View the script via Pastebin: http://pastebin.com/jsZ4rCZr
2.) Click DOWNLOAD and save it as .scm file. (choose ‘All Files’ as save type, then add .scm at the end of the filename)
2.) Save the .scm file to your gimp’s scripts folder (C:\Document and Settings\<username>\.gimp-<version>\scripts\)
3.) Restart GIMP
4.) If installed correctly, then you should now be able to navigate Script-FU>Mitchi>Script Outliner v1.0…
5.) If you have any problems installing the script, give me a comment! :3