I remember a few times getting the "black bar" or the skin wouldn't start at all, I would say to myself humm..what the hell is going-on (while scratching my head!)? Ah, let me run skinchecker.
It would tell me that (image) menu_on.skin which cause me to look for it only to find it was just misspelled (mennu_on.skin). Sometimes the graphic was missing all together.
External_GPS.skin was always missing the underscore!

All this cause me to scratch my head wondering what was wrong - until i ran skinchecker!

With this version i hope to trim a lot of fat (unnecessary files and images) in some skins.