|#| new buttons row
|#| button, ⇐, left
|#| button, ⇑, up
|#| button, ⇓, down
|#| button, ⇒, right
|#| new buttons row
|#| button, Pen Down, pen down
|#| button, Pen Up, pen up
|#| new buttons row
|#| button, <h2 style="color:red">██</h2>, set red
|#| button, <h2 style="color:green">██</h2>, set green
|#| button, <h2 style="color:blue">██</h2>, set blue
|#| button, <h2 style="color:white">██</h2>, set white
|#| button, <h2>██</h2>, set black

|#| variables, x, y, @pixel-x, @pixel-y
|#| variables, r, g, b, @pixel-r, @pixel-g, @pixel-b

|x, -x| |-x|
|y, -y| |-y|

|r, -r| |-r| |g, -g| |-g| |b, -b| |-b|

|pen up, pen down|

|set red, green| red
|set red, blue| red
|set red, white| red
|set red| red

|set green, red| green
|set green, blue| green
|set green, white| green
|set green| green

|set blue, red| blue
|set blue, green| blue
|set blue, white| blue
|set blue| blue

|set white, red| white
|set white, green| white
|set white, blue| white
|set white| white

|set black, red|
|set black, green|
|set black, blue|
|set black, white|

|set color, red| red, @pixel-r:255
|set color, green| green, @pixel-g:255
|set color, blue| blue, @pixel-b:255
|set color, white| white, @pixel-r:255, @pixel-g:255, @pixel-b:255
|set color|

|set pixel|
	, @set-pixel

|draw pixel|
	, set color
	, set pixel

|draw pixel|

|cell #01|
	, @pixel-x = x, @pixel-y = y
	, draw pixel

|cell #02|
	, @pixel-x = x, @pixel-y = y
	, @pixel-x
	, draw pixel

|cell #03|
	, @pixel-x = x, @pixel-y = y
	, @pixel-y
	, draw pixel

|cell #04|
	, @pixel-x = x
	, @pixel-y = y
	, @pixel-x, @pixel-y
	, draw pixel

|display|
	, @display

|draw square, pen down|
	, cell #01, cell #02
	, cell #03, cell #04
        , pen down
	, display

|draw square|

|move left|
	, -x:10, draw square

|move up|
	, -y:10, draw square

|move down|
	, y:10, draw square

|move right|
	, x:10, draw square

|left|
	, move left

|up|
	, move up

|down|
	, move down

	
|right|
	, move right

|| x:10, y:10, draw square