https://code.google.com/p/enchantmoon/issues/detail?id=34

gistfile1.txt

	var backing = MOON.getCurrentPage().backing;
	var paper = MOON.getPaperJSON(backing);

	var white = -1;
	var penColor = (0x00aaff | (0xff000000));

	var pressure = 0.5;

	paper.color = white;
	paper.strokes = [];


	var w = paper.width;
	var h = paper.height
	var penWidth = 1.5;

	console.log(w + ", " + h);

	var lines = 36;
	for(var i = 0; i < lines; ++i) {
		var y = parseInt(h * 1 / lines * i, 10);
		var data = [];
		Array.prototype.push.apply(data, [parseInt(-w/2, 10), y, pressure]);
		Array.prototype.push.apply(data, [parseInt(w*1.5, 10), y, pressure]);
		paper.strokes.push({
			"type": "pen",
			"color": penColor,
			"width": penWidth,
			"data": data
		});
	}
	lines = w / (h / lines);
	for(var i = 0; i < lines; ++i) {
		var x = parseInt(w * 1 / lines * i, 10);
		var data = [];
		Array.prototype.push.apply(data, [x, parseInt(-h/2, 10), pressure]);
		Array.prototype.push.apply(data, [x, parseInt(h*1.5, 10), pressure]);
		paper.strokes.push({
			"type": "pen",
			"color": penColor,
			"width": penWidth,
			"data": data
		});
	}

	MOON.setPaperJSON(backing, paper);