Muha!
I did it; I've "fixed" the AP number colours! The thing is that the guages (.gau) are actually programs, which makes it highly entertaining figuring out what bit does what.
Anyway, the procedure is the same as with the radio stack, finding the location of the values. The only thing I knew about the numbers is that it's teal-like colour, and font is Quartz.
By searching the Lear_45.gau you can find a lot of references to Quartz, but what you won't find so many references to is 0x1296A5. In fact if I don't remember wrongly, there are exactly five of those. On top of that, if you split up the numbers in RGB you get a teal colour.
So what I did is change all the 0x1296A5 (which is nearby the Quartz string), and tada panel is fixed.