function putColors()
  if type == "ender_chest" then
     chest.setColors(b1,b2,b3)
  elseif type == "ender_tank" then
     chest.setColors(b3,b2,b1)
  end
end

function takeColors()
  if type == "ender_chest" then
    b1,b2,b3 = chest.getColors()
  elseif type == "ender_tank" then
    b3,b2,b1 = chest.getColors()
  end
end

function monClear()
  mon.clear()
  mon.setCursorPos(1,1)
end

function drawButtons()
for i= 1, y do
  for k=1,x/3+1 do
    mon.setCursorPos(k,i)
    mon.setBackgroundColor(b1)
    mon.write(" ")
  end
end
for i=1, y do
  for k=x/3+1,x/3*2+2 do
    mon.setCursorPos(k,i)
    mon.setBackgroundColor(b2)
    mon.write(" ")
  end
end
for i=1, y do
  for k=x/3*2+2, x+2 do
    mon.setCursorPos(k,i)
    mon.setBackgroundColor(b3)
    mon.write(" ")
  end
end
for i=1, y do
  mon.setBackgroundColor(colors.black)
  mon.setCursorPos(x/3+1,i)
  mon.write(" ")
end
for i=1, y do
  mon.setBackgroundColor(colors.black)
  mon.setCursorPos(x/3*2+1,i)
  mon.write(" ")
end
end

mon = peripheral.wrap("top")
x,y = mon.getSize()
for a,b in pairs(rs.getSides()) do
  if peripheral.getType(b) == "ender_chest" or peripheral.getType(b) == "ender_tank" then
   type = peripheral.getType(b)
   chest = peripheral.wrap(b)
   takeColors()
   drawButtons()
   break
  end
end

while true do
  event, param1, param2, param3 = os.pullEvent()
  if peripheral.getType(param1) == "ender_chest" then
    chest = peripheral.wrap(param1)
    type = peripheral.getType(param1)
    takeColors()
    mon.setBackgroundColor(colors.black)
    monClear()
    drawButtons()
  elseif event == "peripheral_detach" then
  monClear()
  elseif event == "monitor_touch" then
    if param2 < x/3 then
      if b1 == 32768 then
        b1=1
      else
        b1 = b1*2
      end
    elseif param2 > x/3 and param2 < x/3*2 then
      if b2 == 32768 then
        b2=1
      else
        b2 = b2*2
      end
    elseif param2 >x/3*2 then
      if b3 == 32768 then
        b3=1
      else
        b3 = b3*2
      end
    end
  putColors()
  drawButtons()
  end
end