message: demo: fix color
diff: @@ -143,10 +143,12 @@ const moveable = new Moveable(editorElement, {
  const guides1 = new Guides(horizontalRulerElement, {
  type: "horizontal",
  setGuides: refreshGuidelines,
  + backgroundColor: "#444444",
  });
  const guides2 = new Guides(verticalRulerElement, {
  type: "vertical",
  setGuides: refreshGuidelines,
  + backgroundColor: "#444444",
  });
  function setLabelCSS(clientX: number, clientY: number) {
  @@ -185,6 +187,8 @@ KeyContoller.global.on("keydown", ({ shiftKey }) => {
  window.addEventListener("resize", () => {
  refreshGuidelines();
  moveable.updateRect();
  + guides1.resize();
  + guides2.resize();
  });
  document.body.addEventListener("gesturestart", e => {
  