Question How does one change signal type indicators/granularity?

I suppose this goes here since it's about UI changes.

I was wondering where in the Sense ROM they've defined which set of signal type indicators to use. I have the T-Mobile variant and I'm not fond of their "4G or nothing" approach and would like a way to get more granularity as well as not having to use their 4G/logo indicators. I ask in the core M8 board since this would probably affect all carriers.