Multi Color Matrix
Type "/33change" and a menu will drop down allowing you to choose 12 colors, 3 spreads or turn the particles off.
You can also use voice commands on channel 33, as follows:
/33 on_off
/33 small
/33 medium
/33 big
/33 white
/33 black
/33 gray
/33 blue
/33 red
/33 green
/33 yellow
/33 cyan
/33 magenta
/33 lavender
/33 rainbow
/33 random