LV1 Meters ballistics

Hi all,
what are the LV1 meters in the Faders and in the input section? Are they RMS, VU or some Peakprogramm? The scale of the Fader is infinity to +10. Does the meter in the fader ever go beyond 0, or is 0 the limit for the meter? So kind of dBFullscale? In the inputsection the meter does not have a scale at all. But there are color changes. What value do these indicate?
Thanks for clearing this. Either the manual was not helpful here or I simply did not find it.