Thanks I'm glad I made something useful!

And yes, I'll have to edit the App icon
I did something wrong with the needed base64 encoding of the .png file (need to remove the "=" characters at the end of the base64 code, I think)

Bingley, it's like you can read minds :P that invisible file idea also came across my mind, with a sort of manager for all the .desktop files.
An "Invisible" toggle checkbox will be in the next version!