  <div class="shell-container">
            <calcite-shell>
              <calcite-shell-panel slot="panel-start" position="start">
                <calcite-action-bar slot="action-bar" class="calcite-mode-dark">
                  <calcite-action-group>
                    <calcite-action text="Add" icon="plus"> </calcite-action>
                    <calcite-action text="Save" disabled icon="save"> </calcite-action>
                    <calcite-action text="Layers" active indicator icon="layers"> </calcite-