How to create android themes

My client wants to create themes like this: http://mappn.com/community/index.php?topic=42.0

I have no clue where to start. When I Googled it I just get themes for style/theme for application.

C开发者_如何学JAVAan anyone suggest where to start learning customizing themes for android phones?

Please share if you find any opensource.

The default Android home screen is not themeable, so you will either need to write your own replacement home screen, or write a theme for one of the existing home screen replacements that others have written and support their own custom themes. Not all are free, and not all support themes.

I don't know much about writing your own Android home screen, other than a home screen activity should respond to the android.intent.category.HOME category in its intent filter (About intent filters).

You have to look at framework-res.apk - most modding is done there. Normaly you find it at /system/framework/framework-res.apk. You can open it with Winrar or 7-Zip and take a look at all the ressources in there.

For more just google it :)

edit: a starting link