I'm trying to make a theme on iOS 6.1, but I can't get all of my icons to change. If I use the stash/themename/Icons folder, my phone goes into safe mode ONLY for icons that are in the dock. For example, if my music is in the dock and I put Music.png in the stash/themename/Icons folder and respring, I get safe mode. However, if I move Music out of the dock and respring, it works just fine.

Normally I'd just make a bundles folder and use com.apple.mobileipod (etc.) for my docked icons, but I want to release this theme on Cydia and not everyone has the same docked icons, so that won't work. What could I do differently to make the Icons folder .pngs work in the dock?