local bridge = peripheral.wrap("left")

-- arguments: x, y, width, height, color, opacity
 box = bridge.addBox(0,0,80,40,0x0099FF,0.7)

while true do
  term.clear()

  print("1. Clear Glasses.")
  print("2. Print a blue rectangle.")
  local answer = toNumber(read())


  if answer == 1 then
  	bridge.clear()
  elseif answer == 2 then
  	box = bridge.addBox(0,0,80,40,0x0099FF,0.7)
  end
end