_createWrappers() {
    // load the manipulator HTML elements. All styling done in css.
    if (this.manipulationDiv === undefined) {
      this.manipulationDiv = document.createElement("div");
      this.manipulationDiv.className = "vis-manipulation";
      if (this.editMode === true) {
        this.manipulationDiv.style.display = "block";
      } else {
        this.manipulationDiv.style.display = "none";
      }
      this.canvas.frame.appendChild(this.manipulationDiv);
    }

    // container for the edit button.
    if (this.editModeDiv === undefined) {
      this.editModeDiv = document.createElement("div");
      this.editModeDiv.className = "vis-edit-mode";
      if (this.editMode === true) {
        this.editModeDiv.style.display = "none";
      } else {
        this.editModeDiv.style.display = "block";
      }
      this.canvas.frame.appendChild(this.editModeDiv);
    }

    // container for the close div button
    if (this.closeDiv === undefined) {
      this.closeDiv = document.createElement("button");
      this.closeDiv.className = "vis-close";
      this.closeDiv.setAttribute(
        "aria-label",
        this.options.locales[this.options.locale]?.["close"] ??
          this.options.locales["en"]["close"]
      );
      this.closeDiv.style.display = this.manipulationDiv.style.display;
      this.canvas.frame.appendChild(this.closeDiv);
    }
  }
create the div overlays that contain the DOM
@private