Settings Preference Icons & Music App

Hey! Has anyone figured out the new location for the settings preference icons? (wifi, bluetooth, do not disturb, brightness & wallpaper etc). I thought it was in System/Library/Preferencebundles, & it doesn't seem to have changed from 5.1.1 to 6.1 (looked at the info.plist) & I've tried manually theming unless I'm looking in the wrong spot?

Also, has anyone found the location of the new white background in the default music app? Tried looking in the music~iphone.app folder but it's not theming either.

Thanks!