If you're interested, I have a D3 style blur theme (from xda) that I modified ever so slightly to include 10% battery increments, since interestingly, the creator didn't put them in for whatever reason.
I haven't gotten around to fixing the theme image in the theme chooser, so it'll show up as @theme_string name with a blank image on the far left. It's attached to this.
EDIT: Now with 4G icons! Theme image is still broken though (sorry)
If you're wondering why it displays 3g initially when you boot up or when exiting airplane mode, it's for realism that it would immediately make the switch to 4G if it detects it. Makes it all the more convincing