var currentColor = 0x000000;
var Pixel = Container.expand(function () {
	var self = Container.call(this);
	var pixelGraphics = self.createAsset('pixel', 'Pixel Graphics', .5, .5);
	self.color = 0x000000;
	self.setColor = function (color) {
		self.color = color;
		pixelGraphics.tint = color;
	};
	self.isDragging = false;
	self.on('down', function (obj) {
		self.setColor(currentColor);
		self.isDragging = true;
	});
	self.on('up', function (obj) {
		self.isDragging = false;
	});
	self.on('move', function (obj) {
		if (self.isDragging) {
			self.setColor(currentColor);
		}
	});
	stage.on('move', function (obj) {
		if (self.isDragging) {
			self.setColor(currentColor);
		}
	});
	stage.on('up', function (obj) {
		self.isDragging = false;
	});
});
var Palette = Container.expand(function () {
	var self = Container.call(this);
	self.paletteGraphics = [];
	for (var i = 1; i <= 7; i++) {
		var paletteGraphic = self.createAsset('palette' + i, 'Palette Graphics ' + i, .5, .5);
		self.paletteGraphics.push(paletteGraphic);
	}
	self.colors = [0xFF0000, 0x00FF00, 0x0000FF, 0xFFFF00, 0xFF00FF, 0x00FFFF, 0xFFFFFF, 0x000000];
	self.on('down', function (obj) {
		var pos = obj.event.getLocalPosition(self);
		var index = Math.floor(pos.x / (self.width / self.colors.length));
		currentColor = self.colors[index];
	});
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var pixels = [];
	var palette = self.addChild(new Palette());
	palette.x = 2048 / 2;
	palette.y = 2732 - palette.height / 2;
	var gridSize = 50;
	var pixelSize = 2048 / gridSize;
	for (var i = 0; i < gridSize; i++) {
		for (var j = 0; j < gridSize; j++) {
			var pixel = self.addChild(new Pixel());
			pixel.x = i * pixelSize + pixelSize / 2;
			pixel.y = j * pixelSize + pixelSize / 2;
			pixels.push(pixel);
		}
	}
	LK.on('tick', function () {
		pixels.forEach(function (pixel) {
			if (pixel.isDragging) {
				pixel.setColor(currentColor);
			}
		});
	});
});

===================================================================
--- original.js
+++ change.js
@@ -30,15 +30,13 @@
 	});
 });
 var Palette = Container.expand(function () {
 	var self = Container.call(this);
-	var paletteGraphics1 = self.createAsset('palette1', 'Palette Graphics 1', .5, .5);
-	var paletteGraphics2 = self.createAsset('palette2', 'Palette Graphics 2', .5, .5);
-	var paletteGraphics3 = self.createAsset('palette3', 'Palette Graphics 3', .5, .5);
-	var paletteGraphics4 = self.createAsset('palette4', 'Palette Graphics 4', .5, .5);
-	var paletteGraphics5 = self.createAsset('palette5', 'Palette Graphics 5', .5, .5);
-	var paletteGraphics6 = self.createAsset('palette6', 'Palette Graphics 6', .5, .5);
-	var paletteGraphics7 = self.createAsset('palette7', 'Palette Graphics 7', .5, .5);
+	self.paletteGraphics = [];
+	for (var i = 1; i <= 7; i++) {
+		var paletteGraphic = self.createAsset('palette' + i, 'Palette Graphics ' + i, .5, .5);
+		self.paletteGraphics.push(paletteGraphic);
+	}
 	self.colors = [0xFF0000, 0x00FF00, 0x0000FF, 0xFFFF00, 0xFF00FF, 0x00FFFF, 0xFFFFFF, 0x000000];
 	self.on('down', function (obj) {
 		var pos = obj.event.getLocalPosition(self);
 		var index = Math.floor(pos.x / (self.width / self.colors.length));