-title">
          <a data-toggle="collapse" href="#vars-0">Variables</a>
        </h3>
      </div>
      <div id="vars-0" class="panel-collapse collapse">
        <div class="list-group">
            <a class="list-group-item" href="../type/gif_screen_type.html#variable-aspect_ratio">aspect_ratio</a>
            <a class="list-group-item" href="../type/gif_screen_type.html#variable-background">background</a>
            <a class="list-group-item" href="../type/gif_screen_type.html#variable-bit_pixel">bit_