MoniterColorFlasher

local colorTable = {
  colors.white;
  colors.lightGray;
  colors.gray;
  colors.black;
  colors.yellow;
  colors.orange;
  colors.red;
  colors.magenta;
  colors.purple;
  colors.lime;
  colors.green;
  colors.cyan;
  colors.lightBlue;
  colors.blue;
  colors.brown;
}

local attachedMonitor = peripheral.wrap("left")
for index,color in ipairs(colorTable) do
  attachedMonitor.setBackgroundColor(color)
  attachedMonitor.clear()
  sleep(1)
end
attachedMonitor.setBackgroundColor(colors.black)