public static void renderUnhandledMessages(FacesContext ctx) {
if (ctx.isProjectStage(ProjectStage.Development)) {
Application app = ctx.getApplication();
HtmlMessages messages = (HtmlMessages) app.createComponent(HtmlMessages.COMPONENT_TYPE);
messages.setId("javax_faces_developmentstage_messages");
Renderer messagesRenderer = ctx.getRenderKit().getRenderer(HtmlMessages.COMPONENT_FAMILY, "javax.faces.Messages");
messages.setErrorStyle("Color: red");
messages.setWarnStyle("Color: orange");
messages.setInfoStyle("Color: blue");