rezgui.js

class GUIList extends GUIWidget {

  constructor(args) {

    super(args);

    this.scrollable = true;

    this.layout = {

      /* type of layout */

      type: "vertical";

      /* should layout grow with content */

      grow: true,

      /* children dimensions */

      width: "max",
      height: 24,

      /* margin between children */

      margin: 4

    }

  }

}