I'd like to create themes for my Nokia C3-00, but I can't use Carbide.UI since I don't have a windows box, only linux, and Carbide.UI doesn't work with wine (stuck in installation with wine 1.5.2).
What must I do to create a theme from scratch? It seems just renaming a .zip file to .nth doesn't work.
I have also tried replacing some pictures in a working .nth file with other pictures, some of them are accepted but not others (the phone says that theme file contains invalid elements). What specifications must the picture files follow?