public function swapColor(colorToSwap:uint,newColor:uint):void{
    if(this._palette.indexOf(newColor) != -1){return;}
	for(var x:int=0;x<this._source.width;x++){
	    for(var y:int=0;y<this._source.height;y++){
	         if(this._source.getPixel(x,y) == colorToSwap){
			this._source.setPixel(x,y,newColor);
			var index:int = this._palette.indexOf(colorToSwap);
			if(index != -1){
				this._palette[index] = newColor;
			}
	        }
	    }
	}
	this.updateBuffer();
}