For a couple of years now, the colour screen Sony Ericsson mobile phones have had a feature called Themes, which is how you set the colour scheme. (Think WinAmp Skin and you have the right idea.) The later mid-range phones have a pretty full-featured communications stack, too, allowing you to easily transfer files on and off of them. Including 'Theme' files. I decided last night to pull one off and see if I could pull it apart.

They're tar files.

And inside, the main definition is a straightforward XML file and most of the images are .png.

Looks like it's really easy to roll own theme files!

Wade.