A silly little thing I decided to make a little bit ago. It opens a box that just cycles through the colors of the rainbow, I don't really have a purpose besides looking pretty :D

If it is going too fast (which I didn't have a problem with it going super-fast), you can change the timer to a -m timer with the appropriate delay.

Open it using /rainbowtrip.

alias rainbowtrip {
  window -dp @Rainbow -1 -1 640 480
  set %rain.r 255
  set %rain.g 0
  set %rain.b 0
  set %rain.set 1
  set %rain.instance 0
  drawrect -fr @Rainbow $rgb(%rain.r,%rain.g,%rain.b) 1 1 1 640 480
  .timerrainbow 0 0 rainbowupdate
}

alias rainbowupdate {
  inc %rain.instance
  if (%rain.set = 1) inc %rain.g
  elseif (%rain.set = 2) dec %rain.r
  elseif (%rain.set = 3) inc %rain.b
  elseif (%rain.set = 4) dec %rain.g
  elseif (%rain.set = 5) inc %rain.r
  elseif (%rain.set = 6) dec %rain.b
  if (%rain.instance = 255) {
    set %rain.instance 0
    inc %rain.set
    if (%rain.set > 6) set %rain.set 1
  }
  drawrect -fr @Rainbow $rgb(%rain.r,%rain.g,%rain.b) 1 1 1 640 480
}

on *:CLOSE:@: {
  if ($target == @Rainbow) {
    .timerrainbow off
    unset %rain.*
  }
}