function _splash(boot) {
		var splash = document.createElement("div");
        splash.textContent = "bootstrapping UI5...";
        splash.style.color = "transparent";
        document.body.append(splash);
		boot.ready().then(function() {
			document.body.removeChild(splash);
		});
	}
Paint splash
@param {sap.ui.core.boot} boot The boot facade
@private