message: Remove unnecessary style on image control
diff: @@ -13,7 +13,6 @@ export class Image extends ui.Component {
  this.message.style.padding = "5px";
  this.message.style.borderRadius = "8px";
  this.message.style.backgroundColor = "rgba(0, 240, 20, 0.5)";
  - this.message.style.visibility = "visible";
  element.appendChild(this.message);
  this.image = document.createElement("img");
  