
Originally posted by
iesposta:
First, in /Applications select BackLight 2 and File->Get Info
under Name & Extension, delete ".app" (This will change the application into a folder.)
...
Sixth, Go back to /Applications and Get Info on the folder BackLight 2
Add back (under Name & Extension) .app and close Get Info. (This will change the folder back to the program's Icon.
Enjoy!

You can ctrl-click (right click) an app and choose "Show Package Contents" to see the files in an app bundle, if you don't want to do the rename thing.