<metro-nav-view>     <metro-nav-panel pull-button="true" suggest-box="true">         <metro-nav-menu class="px-1" id="NavViewMenu" current-value="Music">             <metro-nav-menu-header header="@L["NavigationViewMenu"].Value" />             <metro-nav-menu-separator />             <metro-nav-menu-item type="Header" text="Main Pages" />             <metro-nav-menu-item text="Apps" icon="mif-apps" value="Apps" />             <metro-nav-menu-item text="Music" icon="mif-music" value="Music" />             <metro-nav-menu-item text="Games" icon="mif-gamepad" value="Games" />         </metro-nav-menu>     </metro-nav-panel>     <metro-nav-content>         @L["NavigationViewContent"].Value     </metro-nav-content> </metro-nav-view>