UX: Add icons to all section links in Sidebar (#18378)

This commit introduces an icon to all links in the sidebar. If an icon has not been configured, we will fall back to a generic "link" icon. As part of this commit, we also standardised the size of each prefix to 20px by 20px and set a fix margin. This is to allow sufficient space for text prefixes and image prefixes to be displayed. 

Tests have been intentionally left out for now as I don't feel like asserting for the icons will bring much value at this point. Time shall prove me wrong.

Co-authored-by: awesomerobot <kris.aubuchon@discourse.org>

app/assets/javascripts/discourse/app/components/sidebar/anonymous/tags-section.hbs

@@ -8,6 +8,8 @@
       @route={{sectionLink.route}}
       @content={{sectionLink.text}}
       @currentWhen={{sectionLink.currentWhen}}
+      @prefixType={{sectionLink.prefixType}}
+      @prefixValue={{sectionLink.prefixValue}}
       @models={{sectionLink.models}} >
     </Sidebar::SectionLink>
   {{/each}}

app/assets/javascripts/discourse/app/components/sidebar/common/all-categories-section-link.hbs

@@ -2,4 +2,6 @@
   @linkName="all-categories"
   @content={{i18n "sidebar.all_categories"}}
   @route="discovery.categories"
+  @prefixType="icon"
+  @prefixValue="list"
 />

app/assets/javascripts/discourse/app/components/sidebar/common/all-tags-section-link.hbs

@@ -2,4 +2,6 @@
   @linkName="all-tags"
   @content={{i18n "sidebar.all_tags"}}
   @route="tags"
+  @prefixType="icon"
+  @prefixValue="list"
 />

app/assets/javascripts/discourse/app/components/sidebar/common/community-section.hbs

@@ -22,7 +22,9 @@
       @currentWhen={{sectionLink.currentWhen}}
       @badgeText={{sectionLink.badgeText}}
       @model={{sectionLink.model}}
-      @models={{sectionLink.models}} />
+      @models={{sectionLink.models}}
+      @prefixType={{sectionLink.prefixType}}
+      @prefixValue={{sectionLink.prefixValue}} />
   {{/each}}
 
   <Sidebar::MoreSectionLinks @sectionLinks={{this.moreSectionLinks}} @secondarySectionLinks={{this.moreSecondarySectionLinks}} />

app/assets/javascripts/discourse/app/components/sidebar/hamburger-dropdown.hbs

@@ -3,7 +3,7 @@
     <div class="panel-body">
       <div class="panel-body-contents">
         <div class="sidebar-hamburger-dropdown">
-          <Sidebar::Sections @currentUser={{this.currentUser}} @collapsableSections={{false}} />
+          <Sidebar::Sections @currentUser={{this.currentUser}} @collapsableSections={{true}} />
           <Sidebar::Footer @tagName="" />
         </div>
       </div>

app/assets/javascripts/discourse/app/components/sidebar/more-section-link.hbs

@@ -8,4 +8,6 @@
   @currentWhen={{@sectionLink.currentWhen}}
   @badgeText={{@sectionLink.badgeText}}
   @model={{@sectionLink.model}}
-  @models={{@sectionLink.models}} />
+  @models={{@sectionLink.models}}
+  @prefixType={{@sectionLink.prefixType}}
+  @prefixValue={{@sectionLink.prefixValue}} />

app/assets/javascripts/discourse/app/components/sidebar/more-section-links.hbs

@@ -4,6 +4,10 @@
 
 <details class="sidebar-more-section-links-details" {{on "toggle" this.toggleSectionLinks}}>
   <summary class="sidebar-more-section-links-details-summary sidebar-row" >
+    <span class="sidebar-more-section-links-icon-wrapper">
+      {{d-icon "ellipsis-v"}}
+    </span>
+
     {{i18n "sidebar.more"}}
   </summary>
 

app/assets/javascripts/discourse/app/components/sidebar/section-link-prefix.hbs

@@ -0,0 +1,21 @@
+{{#if @prefixValue}}
+  <span class={{concat-class "sidebar-section-link-prefix" @prefixType @prefixCSSClass}} style={{@prefixCSS}}>
+    {{#if (eq @prefixType "image")}}
+      <img src={{@prefixValue}} class="prefix-image">
+    {{/if}}
+
+    {{#if (eq @prefixType "text")}}
+      <span class="prefix-text">
+        {{@prefixValue}}
+      </span>
+    {{/if}}
+
+    {{#if (eq @prefixType "icon")}}
+      {{d-icon @prefixValue class="prefix-icon"}}
+    {{/if}}
+
+    {{#if @prefixBadge}}
+      {{d-icon @prefixBadge class="prefix-badge"}}
+    {{/if}}
+  </span>
+{{/if}}

app/assets/javascripts/discourse/app/components/sidebar/section-link-prefix.js

@@ -0,0 +1,3 @@
+import templateOnly from "@ember/component/template-only";
+
+export default templateOnly();

app/assets/javascripts/discourse/app/components/sidebar/section-link.hbs

@@ -1,6 +1,14 @@
 <div class="sidebar-section-link-wrapper">
   {{#if @href}}
     <a href={{@href}} rel="noopener noreferrer" target="_blank" class={{this.classNames}} title={{@title}}>
+      <Sidebar::SectionLinkPrefix
+        @prefixType={{@prefixType}}
+        @prefixValue={{@prefixValue}}
+        @prefixCSSClass={{@prefixCSSClass}}
+        @prefixCSS={{this.prefixCSS}}
+        @prefixBadge={{@prefixBadge}}
+      />
+
       <span class="sidebar-section-link-content-text">
         {{@content}}
       </span>
@@ -14,25 +22,14 @@
       @current-when={{@currentWhen}}
       @title={{@title}}
     >
-      {{#if @prefixValue}}
-        <span class="sidebar-section-link-prefix {{@prefixType}} {{@prefixCSSClass}}" style={{this.prefixCSS}}>
-          {{#if (eq @prefixType "image")}}
-            <img src={{@prefixValue}} class="prefix-image">
-          {{/if}}
 
-          {{#if (eq @prefixType "text")}}
+      <Sidebar::SectionLinkPrefix
-            {{@prefixValue}}
+        @prefixType={{@prefixType}}
-          {{/if}}
+        @prefixValue={{@prefixValue}}
-
+        @prefixCSSClass={{@prefixCSSClass}}
-          {{#if (eq @prefixType "icon")}}
+        @prefixCSS={{this.prefixCSS}}
-            {{d-icon @prefixValue class="prefix-icon"}}
+        @prefixBadge={{@prefixBadge}}
-          {{/if}}
+      />
-
-          {{#if @prefixBadge}}
-            {{d-icon @prefixBadge class="prefix-badge"}}
-          {{/if}}
-        </span>
-      {{/if}}
 
       <span class="sidebar-section-link-content-text">
         {{@content}}
@@ -45,7 +42,7 @@
       {{/if}}
 
       {{#if @suffixValue}}
-        <span class="sidebar-section-link-suffix {{@suffixType}} {{@suffixCSSClass}}">
+        <span class={{concat-class "sidebar-section-link-suffix" @suffixType @suffixCSSClass}}>
           {{#if (eq @suffixType "icon")}}
             {{d-icon @suffixValue}}
           {{/if}}

app/assets/javascripts/discourse/app/components/sidebar/section.hbs

@@ -1,11 +1,12 @@
 <div class={{concat "sidebar-section-wrapper sidebar-section-" @sectionName}}>
   <div class="sidebar-section-header-wrapper sidebar-row">
     <Sidebar::SectionHeader @collapsable={{@collapsable}} @toggleSectionDisplay={{this.toggleSectionDisplay}}>
-      <span class="sidebar-section-header-caret">
+      {{#if @collapsable}}
-        {{#if @collapsable}}
+        <span class="sidebar-section-header-caret">
           {{d-icon this.headerCaretIcon}}
-        {{/if}}
+        </span>
-      </span>
+      {{/if}}
+
       <span class="sidebar-section-header-text">
         {{@headerLinkText}}
       </span>

app/assets/javascripts/discourse/app/components/sidebar/user/messages-section.hbs

@@ -13,6 +13,8 @@
         @class={{personalMessageSectionLink.class}}
         @route={{personalMessageSectionLink.route}}
         @model={{personalMessageSectionLink.model}}
+        @prefixType={{personalMessageSectionLink.prefixType}}
+        @prefixValue={{personalMessageSectionLink.prefixValue}}
         @currentWhen={{personalMessageSectionLink.currentWhen}}
         @content={{personalMessageSectionLink.text}} />
     {{/if}}
@@ -25,6 +27,8 @@
           @linkName={{groupMessageSectionLink.name}}
           @class={{groupMessageSectionLink.class}}
           @route={{groupMessageSectionLink.route}}
+          @prefixType={{groupMessageSectionLink.prefixType}}
+          @prefixValue={{groupMessageSectionLink.prefixValue}}
           @models={{groupMessageSectionLink.models}}
           @currentWhen={{groupMessageSectionLink.currentWhen}}
           @content={{groupMessageSectionLink.text}} />

app/assets/javascripts/discourse/app/components/sidebar/user/tags-section.hbs

@@ -13,6 +13,8 @@
         @title={{sectionLink.title}}
         @content={{sectionLink.text}}
         @currentWhen={{sectionLink.currentWhen}}
+        @prefixType={{sectionLink.prefixType}}
+        @prefixValue={{sectionLink.prefixValue}}
         @badgeText={{sectionLink.badgeText}}
         @models={{sectionLink.models}} >
       </Sidebar::SectionLink>

app/assets/javascripts/discourse/app/lib/sidebar/base-community-section-link.js

@@ -93,6 +93,20 @@ export default class BaseCommunitySectionLink {
    */
   get badgeText() {}
 
+  /**
+   * @private
+   */
+  get prefixType() {
+    return "icon";
+  }
+
+  /**
+   * @returns {string} The name of the fontawesome icon to be displayed before the link. Defaults to "link".
+   */
+  get prefixValue() {
+    return "link";
+  }
+
   _notImplemented() {
     throw "not implemented";
   }

app/assets/javascripts/discourse/app/lib/sidebar/common/community-section/about-section-link.js

@@ -18,4 +18,7 @@ export default class AboutSectionLink extends BaseSectionLink {
   get text() {
     return I18n.t("sidebar.sections.community.links.about.content");
   }
+  get prefixValue() {
+    return "info-circle";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/common/community-section/badges-section-link.js

@@ -22,4 +22,8 @@ export default class BadgesSectionLink extends BaseSectionLink {
   get shouldDisplay() {
     return this.siteSettings.enable_badges;
   }
+
+  get prefixValue() {
+    return "certificate";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/common/community-section/everything-section-link.js

@@ -71,4 +71,8 @@ export default class EverythingSectionLink extends BaseSectionLink {
       return "discovery.latest";
     }
   }
+
+  get prefixValue() {
+    return "layer-group";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/common/community-section/faq-section-link.js

@@ -22,4 +22,8 @@ export default class FAQSectionLink extends BaseSectionLink {
   get text() {
     return I18n.t("sidebar.sections.community.links.faq.content");
   }
+
+  get prefixValue() {
+    return "question-circle";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/common/community-section/groups-section-link.js

@@ -22,4 +22,8 @@ export default class GroupsSectionLink extends BaseSectionLink {
   get shouldDisplay() {
     return this.siteSettings.enable_group_directory;
   }
+
+  get prefixValue() {
+    return "user-friends";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/common/community-section/users-section-link.js

@@ -25,4 +25,8 @@ export default class UsersSectionLink extends BaseSectionLink {
       (this.currentUser || !this.siteSettings.hide_user_profiles_from_public)
     );
   }
+
+  get prefixValue() {
+    return "users";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/user/community-section/admin-section-link.js

@@ -22,4 +22,8 @@ export default class AdminSectionLink extends BaseSectionLink {
   get shouldDisplay() {
     return this.currentUser?.staff;
   }
+
+  get prefixValue() {
+    return "wrench";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/user/community-section/my-posts-section-link.js

@@ -62,4 +62,8 @@ export default class MyPostsSectionLink extends BaseSectionLink {
   get _hasDraft() {
     return this.draftCount > 0;
   }
+
+  get prefixValue() {
+    return "user";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/user/community-section/tracked-section-link.js

@@ -72,4 +72,8 @@ export default class TrackedSectionLink extends BaseSectionLink {
       return "discovery.latest";
     }
   }
+
+  get prefixValue() {
+    return "bell";
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/user/messages-section/message-section-link.js

@@ -71,4 +71,16 @@ export default class MessageSectionLink {
   get _shouldTrack() {
     return this.type === NEW || this.type === UNREAD;
   }
+
+  get prefixType() {
+    if (this._isInbox) {
+      return "icon";
+    }
+  }
+
+  get prefixValue() {
+    if (this._isInbox) {
+      return "inbox";
+    }
+  }
 }

app/assets/javascripts/discourse/app/lib/sidebar/user/tags-section/tag-section-link.js

@@ -64,4 +64,12 @@ export default class TagSectionLink {
       });
     }
   }
+
+  get prefixType() {
+    return "icon";
+  }
+
+  get prefixValue() {
+    return "tag";
+  }
 }

app/assets/stylesheets/common/base/discourse.scss

@@ -683,7 +683,7 @@ table {
 }
 
 #main-outlet {
-  padding-top: 2.5em;
+  padding-top: 1.5em;
 }
 
 #main {

app/assets/stylesheets/common/base/sidebar-more-section-links.scss

@@ -12,9 +12,18 @@
     list-style: none;
     box-sizing: border-box;
 
-    .d-icon {
+    .sidebar-more-section-links-icon-wrapper {
-      margin-left: auto;
+      display: flex;
-      color: var(--primary-medium);
+      align-items: center;
+      justify-content: center;
+      width: var(--d-sidebar-section-link-prefix-width);
+      height: var(--d-sidebar-section-link-prefix-width);
+      margin-right: var(--d-sidebar-section-link-prefix-margin-right);
+
+      .d-icon {
+        color: var(--primary-medium);
+        font-size: var(--font-down-1);
+      }
     }
 
     &::before {
@@ -35,7 +44,7 @@
     margin: 0 calc(var(--d-sidebar-row-horizontal-padding) * 2 / 3);
 
     .sidebar-row {
-      padding: calc(var(--d-sidebar-row-horizontal-padding) / 3);
+      padding: 0.33rem calc(var(--d-sidebar-row-horizontal-padding) / 3);
     }
   }
 

app/assets/stylesheets/common/base/sidebar-section-link.scss

@@ -1,10 +1,14 @@
+:root {
+  --d-sidebar-section-link-prefix-margin-right: 0.4rem;
+  --d-sidebar-section-link-prefix-width: 20px;
+}
+
 .sidebar-section-link-wrapper {
   display: flex;
   align-items: center;
   position: relative;
 
   .sidebar-section-link {
-    box-sizing: border-box;
     display: inline-flex;
     width: 100%;
     align-items: center;
@@ -19,8 +23,13 @@
 
     &.active {
       color: var(--primary);
-      font-weight: bold;
       background: var(--d-sidebar-highlight-color);
+
+      .sidebar-section-link-prefix {
+        &.icon {
+          color: var(--primary-high);
+        }
+      }
     }
 
     .sidebar-section-link-content-badge {
@@ -67,7 +76,10 @@
   .sidebar-section-link-group-messages-unread,
   .sidebar-section-link-group-messages-archive {
     .sidebar-section-link-content-text {
-      margin-left: 0.5em;
+      margin-left: calc(
+        var(--d-sidebar-section-link-prefix-margin-right) +
+          var(--d-sidebar-section-link-prefix-width)
+      );
     }
   }
 
@@ -78,45 +90,46 @@
   }
 
   .sidebar-section-link-prefix {
+    display: flex;
+    align-items: center;
+    justify-content: center;
     flex-shrink: 0;
+    width: var(--d-sidebar-section-link-prefix-width);
+    height: var(--d-sidebar-section-link-prefix-width);
+    margin-right: var(--d-sidebar-section-link-prefix-margin-right);
 
     &.image {
-      position: absolute;
       img {
-        border-radius: 50%;
+        border-radius: 100%;
-        width: 20px;
         aspect-ratio: auto 20 / 20;
-        height: 20px;
+        width: calc(var(--d-sidebar-section-link-prefix-width) - 2px);
-        margin-right: 0.5em;
+        height: calc(var(--d-sidebar-section-link-prefix-width) - 2px);
-      }
-
-      + .sidebar-section-link-content-text {
-        margin-left: calc(20px + 0.5em);
       }
     }
 
     &.text {
-      border-radius: 100%;
-      background: rgba(var(--primary-rgb), 0.1);
       text-align: center;
-      font-size: var(--font-down-1);
+
-      padding: 0.27em 0.47em;
+      .prefix-text {
-      margin-right: 0.25em;
+        display: flex;
-      position: absolute;
+        align-items: center;
-      + .sidebar-section-link-content-text {
+        justify-content: center;
-        margin-left: calc(20px + 0.5em);
+        border-radius: 100%;
+        background: rgba(var(--primary-rgb), 0.1);
+        width: calc(var(--d-sidebar-section-link-prefix-width) - 2px);
+        height: calc(var(--d-sidebar-section-link-prefix-width) - 2px);
       }
     }
 
     &.icon {
       position: relative;
-      margin-right: 0.5em;
+      color: var(--primary-medium);
 
       svg {
         font-size: var(--font-down-1);
       }
 
-      svg.prefix-badge {
+      .prefix-badge {
         position: absolute;
         background-color: transparent;
         border-radius: 50%;
@@ -126,7 +139,7 @@
         width: 0.5rem;
         top: -0.2em;
         right: 0;
-        margin-right: -0.6em;
+        margin-right: -0.2em;
       }
     }
   }

app/assets/stylesheets/common/base/sidebar-section.scss

@@ -1,29 +1,51 @@
+:root {
+  --d-sidebar-section-header-text-font-size: var(--font-up-1);
+}
+
 .sidebar-section-wrapper {
+  .discourse-no-touch & {
+    &:hover {
+      .sidebar-section-header-wrapper {
+        .btn.dropdown-select-box-header,
+        .sidebar-section-header-button {
+          opacity: 1;
+        }
+      }
+    }
+  }
+
   .sidebar-section-header-wrapper {
     display: flex;
-    box-sizing: border-box;
+
-    padding: 0;
     .discourse-no-touch & {
       &:hover {
         background: var(--d-sidebar-highlight-color);
       }
     }
+
     &:focus-within {
       background: var(--d-sidebar-highlight-color);
     }
 
     .btn.dropdown-select-box-header,
     .sidebar-section-header-button {
+      .discourse-no-touch & {
+        transition: all 0.25s;
+        opacity: 0;
+      }
+
       background: transparent;
       border: none;
+      margin-right: calc(var(--d-sidebar-row-horizontal-padding) / 3 * -1);
       padding: calc(var(--d-sidebar-row-horizontal-padding) / 5)
         calc(var(--d-sidebar-row-horizontal-padding) / 3);
-      margin-right: calc(var(--d-sidebar-row-horizontal-padding) / 1.5);
+
       .d-icon {
         font-size: var(--font-down-1);
         color: var(--primary-medium);
         margin: 0;
       }
+
       &:focus {
         outline: none;
         background: var(--primary-medium);
@@ -31,6 +53,7 @@
           color: var(--primary-very-low);
         }
       }
+
       .discourse-no-touch & {
         &:hover {
           background: var(--primary-medium);
@@ -44,16 +67,10 @@
 
   .sidebar-section-header {
     flex: 1 1 auto;
-    text-transform: uppercase;
-    font-weight: bold;
-    font-size: var(--font-1);
     color: var(--primary);
     align-items: center;
-    padding: calc(var(--d-sidebar-row-horizontal-padding) / 2)
-      calc(var(--d-sidebar-row-horizontal-padding) / 2)
-      calc(var(--d-sidebar-row-horizontal-padding) / 2)
-      var(--d-sidebar-row-horizontal-padding);
     min-width: 0;
+    padding: 0;
 
     &.sidebar-section-header-collapsable {
       justify-content: flex-start;
@@ -61,18 +78,25 @@
   }
 
   .sidebar-section-header-text {
-    font-weight: bold;
     line-height: normal;
     margin-right: 0.25em;
+    font-size: var(--d-sidebar-section-header-text-font-size);
     @include ellipsis;
   }
 
   .sidebar-section-header-caret {
-    display: block;
+    display: flex;
-    width: 1.5em;
-    margin-left: -1.5em;
-    font-size: var(--font-down-2);
     flex: 0 0 auto;
+    width: var(--d-sidebar-section-link-prefix-width);
+    height: var(--d-sidebar-section-link-prefix-width);
+    margin-right: var(--d-sidebar-section-link-prefix-margin-right);
+    align-items: center;
+    justify-content: center;
+
+    svg {
+      font-size: var(--font-down-1);
+      color: var(--primary-medium);
+    }
   }
 
   .select-kit-collection {
@@ -93,9 +117,12 @@
 
   .sidebar-section-message {
     color: var(--primary);
+    padding-left: 1.4em;
   }
 
   .sidebar-section-content {
+    padding-bottom: 1em;
+
     hr {
       margin: 0em 1.5em;
     }

app/assets/stylesheets/common/base/sidebar.scss

@@ -2,14 +2,26 @@
   --d-sidebar-width: #{$d-sidebar-width};
   --d-sidebar-animation-time: 0.25s;
   --d-sidebar-animation-ease: ease-in-out;
+  --d-sidebar-row-height: 30px;
+  // 1.25rem gets text left-aligned with the hamburger icon
+  --d-sidebar-row-horizontal-padding: 1.25rem;
+  --d-sidebar-row-vertical-padding: 0.33rem;
+  --d-sidebar-row-font-size: var(--font-down-1);
+}
+
+.sidebar-row {
+  box-sizing: border-box;
+  height: var(--d-sidebar-row-height);
+  padding: var(--d-sidebar-row-vertical-padding)
+    var(--d-sidebar-row-horizontal-padding);
+  align-items: center;
+  font-size: var(--d-sidebar-row-font-size);
 }
 
 .sidebar-wrapper {
   display: flex;
   --d-sidebar-highlight-color: var(--primary-low);
-  // 1.25rem gets text left-aligned with the hamburger icon
+  background-color: var(--primary-50);
-  --d-sidebar-row-horizontal-padding: 1.25rem;
-  background-color: var(--primary-very-low);
   grid-area: sidebar;
   position: sticky;
   top: var(--header-offset);
@@ -21,12 +33,6 @@
   align-self: start;
   overflow-y: auto;
 
-  .sidebar-row {
-    padding: 0.33rem var(--d-sidebar-row-horizontal-padding);
-    align-items: center;
-    font-size: var(--font-down-1);
-  }
-
   .sidebar-container {
     display: flex;
     flex-direction: column;
@@ -44,7 +50,7 @@
     flex-direction: column;
     box-sizing: border-box;
     flex: 1;
-    padding: 1em 0;
+    padding: 1.5em 0 1em;
     overflow-x: hidden;
     overflow-y: overlay;
 
@@ -83,17 +89,6 @@
 }
 
 .sidebar-hamburger-dropdown {
-  // note that these apply to mobile and desktop dropdowns
-  .sidebar-section-wrapper {
-    .sidebar-section-header-wrapper.sidebar-row {
-      padding-right: 0;
-    }
-
-    .sidebar-section-header {
-      padding: 0;
-    }
-  }
-
   .discourse-no-touch & {
     .sidebar-section-wrapper .sidebar-section-header-wrapper:hover,
     .sidebar-section-wrapper .sidebar-section-header-wrapper:focus-within {

app/assets/stylesheets/desktop/_index.scss

@@ -12,7 +12,6 @@
 @import "menu-panel";
 @import "modal";
 @import "new-user";
-@import "sidebar-section";
 @import "topic-list";
 @import "topic-post";
 @import "topic";

app/assets/stylesheets/desktop/discourse.scss

@@ -195,7 +195,7 @@ body.has-sidebar-page {
 
   #main-outlet-wrapper {
     grid-template-columns: var(--d-sidebar-width) minmax(0, 1fr);
-    gap: 0 1em;
+    gap: 0 2em;
     padding-left: 0;
   }
 }

app/assets/stylesheets/desktop/menu-panel.scss

@@ -13,14 +13,10 @@
 .hamburger-panel .revamped {
   --d-sidebar-highlight-color: var(--highlight-medium);
   --d-sidebar-row-horizontal-padding: 0.5rem;
-  width: var(--d-sidebar-width);
+  --d-sidebar-row-height: 30px;
-
+  // 1.25rem gets text left-aligned with the hamburger icon
-  .sidebar-row {
+  --d-sidebar-row-horizontal-padding: 0.66rem;
-    padding: 0.25rem var(--d-sidebar-row-horizontal-padding);
+  --d-sidebar-row-vertical-padding: 0.33rem;
-    height: 27px;
-    align-items: center;
-    font-size: var(--font-down-1);
-  }
 
   .panel-body-content {
     width: 100%;

app/assets/stylesheets/desktop/sidebar-section.scss

@@ -1,25 +0,0 @@
-#main-outlet-wrapper {
-  .sidebar-section-wrapper {
-    .sidebar-section-header-button,
-    .sidebar-section-header-caret,
-    .sidebar-section-header-dropdown {
-      .discourse-no-touch & {
-        opacity: 0;
-        transition: opacity 0.25s;
-        transition-delay: 0.25s;
-      }
-    }
-
-    .discourse-no-touch & {
-      &:focus-within,
-      &:hover {
-        .sidebar-section-header-button,
-        .sidebar-section-header-caret,
-        .sidebar-section-header-dropdown {
-          opacity: 1;
-          transition-delay: 0s;
-        }
-      }
-    }
-  }
-}

app/assets/stylesheets/mobile/menu-panel.scss

@@ -72,6 +72,9 @@
 .hamburger-panel .revamped {
   --d-sidebar-row-horizontal-padding: 1rem;
   --d-sidebar-highlight-color: var(--primary-low);
+  --d-sidebar-row-font-size: var(--font-0);
+  --d-sidebar-row-height: 32px;
+  --d-sidebar-section-header-text-font-size: var(--font-0);
   box-sizing: border-box;
   padding: 0;
 
@@ -79,18 +82,23 @@
     .sidebar-hamburger-dropdown {
       display: flex;
       flex-direction: column;
+      padding-top: 0.5em;
     }
   }
 
   .sidebar-row {
-    padding: 1.2rem var(--d-sidebar-row-horizontal-padding);
+    &.sidebar-section-message-wrapper {
-    height: 27px;
+      padding-top: 0;
-    align-items: center;
+      padding-bottom: 0.25em;
-    font-size: var(--font-0);
+    }
+
+    .sidebar-section-message {
+      padding: 0;
+    }
   }
 
   .sidebar-section-wrapper {
-    margin-bottom: 0.5em;
+    margin-bottom: 1.2em;
   }
 
   .sidebar-footer-wrapper {
@@ -112,4 +120,8 @@
     flex-direction: column;
     box-sizing: border-box;
   }
+
+  .sidebar-section-content {
+    padding-bottom: 0;
+  }
 }

lib/svg_sprite.rb

@@ -139,6 +139,7 @@ module SvgSprite
     "hourglass-start",
     "id-card",
     "image",
+    "inbox",
     "info-circle",
     "italic",
     "key",