) || serverURL;
		socketserver = new WebSocket(serverURL);
		setupSocket();
	}

	if (urlParams.has("chroma")){
		var chroma = urlParams.get("chroma") || "0F0";
		document.body.style.backgroundColor = "#"+chroma;
	}
	
	var speed = 1.0;
	if (urlParams.has("speed")){
		speed = parseFloat(urlParams.get("speed")) || 1;
		speed = 1 / speed;
		document.documentElement.style.setProperty("--x-speed", (13*speed)+"%"); // not used
		document.documentElement.style.setProperty("--y-speed",  (7*speed)+"%")