Thanks for adding the custom carrier label! It's amazing that I can finally change my carrier label without using a ROM that's loaded with useless features. I just wanted to post some feedback though. Ever since the latest version of the toolkit, things have changed a little.
Before it showed the carrier name on the lockscreen, notification shade and quick settings panel. Ever since the last update, it just shows on the lockscreen. I disabled the option, rebooted, re-enabled it, rebooted and it was still having the same issue.
Feature Suggestion for stock versions of Android (Nexus 4)
1. Pull down from the right of notification shade to access quick toggles quickly.
2. Hide clock in the notification bar on the lockscreen
3. Transparent status bar on lockscreen and desktop
4. Option to enable "full date" in the notification shade (ala pre Android 4.2)
Keep up the great work.