chromium/chrome/browser/resources/extensions/sidebar.html

<style include="cr-icons cr-hidden-style cr-nav-menu-item-style
cr-shared-style">
  :host {
    --sidebar-inactive-color: #5a5a5a;
    color: var(--sidebar-inactive-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    width: var(--sidebar-width);
  }

  @media (prefers-color-scheme: dark) {
    :host {
      --sidebar-inactive-color: var(--cr-primary-text-color);
    }
  }

  #sectionMenu {
    padding-top: 8px;
  }

  .separator {
    border-top: var(--cr-separator-line);
    margin: 8px 0;
  }

  #moreExtensions {
    align-items: center;
    display: flex;
    margin-bottom: 8px;
  }

  #web-store-icon {
    --iron-icon-height: 24px;
    --iron-icon-width: 24px;
    margin-inline-end: 18px;
    margin-inline-start: -2px;
  }

  #discover-more-text {
    line-height: 19px;
    margin-inline-end: 10px;
  }

  #discover-more-text a {
    color: var(--cr-link-color);
  }
</style>
<cr-menu-selector id="sectionMenu"
    selected-attribute="selected"
    attr-for-selected="data-path"
    selected="[[selectedPath_]]">
  <!-- Values for "data-path" attribute must match the "Page" enum. -->
  <a role="menuitem" class="cr-nav-menu-item" id="sectionsExtensions" href="/"
      on-click="onLinkClick_" data-path="items-list">
    <iron-icon icon="extensions-icons:my_extensions"></iron-icon>
    $i18n{sidebarExtensions}
    <cr-ripple></cr-ripple>
  </a>
  <a role="menuitem" class="cr-nav-menu-item" id="sectionsSitePermissions"
      hidden="[[!enableEnhancedSiteControls]]" href="/sitePermissions"
      on-click="onLinkClick_" data-path="site-permissions">
    <iron-icon icon="extensions-icons:site_permissions"></iron-icon>
    $i18n{sitePermissions}
    <cr-ripple></cr-ripple>
  </a>
  <a role="menuitem" class="cr-nav-menu-item" id="sectionsShortcuts"
      href="/shortcuts" on-click="onLinkClick_"
      data-path="keyboard-shortcuts">
    <iron-icon icon="extensions-icons:keyboard_shortcuts"></iron-icon>
    $i18n{keyboardShortcuts}
    <cr-ripple></cr-ripple>
  </a>
</cr-menu-selector>
<div class="separator"></div>
<div class="cr-nav-menu-item" id="moreExtensions">
  <iron-icon id="web-store-icon" icon="extensions-icons:web_store">
  </iron-icon>
  <span id="discover-more-text" class="cr-secondary-text"
      on-click="onMoreExtensionsClick_"
      inner-h-t-m-l="[[discoverMoreText_]]"></span>
  <cr-ripple></cr-ripple>
</div>