The Phase Meter is green when the channels are positively out of phase (values from 0 to +1) and red when the channels are negatively out of phase (values from 0 to –1).
At the center or zero position, the signal is a perfect stereo image. At the +1 position, the signal is a perfect mono image. At the –1 position, the signal is 100% out of phase.
With SurroundScope you can select the two channels to compare by clicking the channel buttons around the Surround Display. Selected channels are indicated in blue.