I kind of doubt he means the signal strength, since in the earlier versions of the theme it was a solid white trapezoid.
So he must know how to change it...

Ancelad, can you please clarify when you get a chance?

Suggestions:
- It would be nice to have some rectangular like shape around the network icon to delineate it from the rest
- The icon's font size seems a bit larger than the rest on the statusbar, would be nicer I think if they were same/smaller not larger (IMHO)