I'm trying to do something that, I think, should be rather easy. Use adb to reskin the powercontrol widget.
I pulled the /system directory and unpacked the Settings.apk package. I did this by changing the name to .zip and unzipping on windows.
I then edited several of the images and rezipped the folder. I renamed the folder to be Settings.apk and then (because windows loves me), gave User permissions on the file so it wasn't 'locked'
Then I used adb to push the file back to the phone and rebooted it.
When the phone came back up, the widget was broken and trying to open the widgets menu from a long-press FC'd helixlauncher.
Not sure what I did wrong, any thoughts would be valued.
If I'm a complete numbskull and have done something ridiculously wrong, I shall endure your lashings.