Chord Pad Questions-Why 'List Assistant' Colors Whited Out? & Why No MIDI Thru While Patterns Play?

Green colored pads are more consonant is what I’ve been led to believe.
But as I try different pads they get whited out. Eventually there cannot be any more colors. Is this by necessity or can a user disable this and continue to see the hint colors and not have them be whitened out? (If I stop the pattern then the whitened keys have colors again, but my goal would be to continue to see the colors and have no pads become whitened out).

Another question - when I’m using Pattern playback mode, why can I not play melodies on the unassigned keys? Why is there no sound (no MIDI thru to my keyboard) even in keyboard ranges not being used for Chord Pads or Modifiers?