<canvas width="600 " height="400"></canvas>
<script>
var pantalla = document.querySelector("canvas");
var pincel = pantalla.getContext("2d");
pincel.fillStyle = "darkgreen" // propiedad
pincel.fillRect(200,50,350,300);
pincel.fillStyle = "black"
pincel.fillRect(245,100,90,90);
pincel.fillStyle = "black"
pincel.fillRect(405,100,90,90);
pincel.fillStyle = "black"
pincel.fillRect(335,190,70,100);
pincel.fillStyle = "black"
pincel.fillRect(295,240,40,110);
pincel.fillStyle = "black"
pincel.fillRect(405,240,40,110);
</script>
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