Chess Board
var canvas = getCanvas();
var black = Color(0, 0, 0, 255);
var white = Color(255, 255, 255, 255);
var size = 45;
for (var row = 0; row < 8; row++) {
for (var col = 0; col < 8; col++) {
var tile = (row+col) % 2 == 0 ? black : white;
canvas.setColor(tile);
canvas.fillRect(col*size, row*size, size, size);
}
}