If you are using obfuscate then try not to use it, sometimes it can give problems

in S40 there is a way on non-touch products to change menu icons, however you will have to be a product provider
there is a special way in which to tell the themes feature to lock the icons to...

I would have liked to attached a tool I made - it helped me when I was head of Theme S40 Architecture - the tool is called ThemeAnalyzer

It helps with showing the elements of a Theme file ".nth"...

link does not work !!!