From f902e0fdd7b72d2bb17b742a8c195a716da88bab Mon Sep 17 00:00:00 2001
From: Jordan Vidrine <30537603+jordanvidrine@users.noreply.github.com>
Date: Mon, 28 Oct 2024 21:25:17 -0500
Subject: [PATCH] UX: Look and feel changes (#29245)

This PR:

- Removes components from being displayed in the card
- Adds a DMenu to house previous footer actions
- Allows themes to be updated from this grid, with an animation and different border to show the update is happening
- Stops position of cards changing when default changes
- Fixes outline colour not changing when default changes
- Show a global notice on the page when previewing a theme
- Allows updating a theme from the grid, and showing an indicator of what theme needs to be updated
- Moves "Set as default" to the dropdown for the theme
- Show screenshot for theme if it is available
- Prevent page reloading when updating the theme
- Fixes theme install modal on grid page
- Temporarily remove sorting of default theme to the top
---
 .../look-and-feel-themes.gjs                  |  69 +++++++
 .../addon/components/modal/install-theme.js   |  10 +-
 .../addon/components/themes-grid-card.gjs     | 195 +++++++++++-------
 .../admin/addon/components/themes-grid.gjs    |  95 ++-------
 .../admin-config-look-and-feel-index.js       |  10 +
 .../routes/admin-config-look-and-feel.js      |   4 -
 .../templates/config-look-and-feel-themes.hbs |   4 +-
 .../addon/templates/config-look-and-feel.hbs  |   1 +
 .../discourse/app/components/global-notice.js |   9 +
 .../instance-initializers/live-development.js |   7 +-
 .../common/components/theme-card.scss         |  78 ++++---
 config/locales/client.en.yml                  |   9 +-
 12 files changed, 296 insertions(+), 195 deletions(-)
 create mode 100644 app/assets/javascripts/admin/addon/components/admin-config-areas/look-and-feel-themes.gjs
 create mode 100644 app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel-index.js

diff --git a/app/assets/javascripts/admin/addon/components/admin-config-areas/look-and-feel-themes.gjs b/app/assets/javascripts/admin/addon/components/admin-config-areas/look-and-feel-themes.gjs
new file mode 100644
index 00000000000..12ba5fce070
--- /dev/null
+++ b/app/assets/javascripts/admin/addon/components/admin-config-areas/look-and-feel-themes.gjs
@@ -0,0 +1,69 @@
+import Component from "@glimmer/component";
+import { action } from "@ember/object";
+import { service } from "@ember/service";
+import I18n from "discourse-i18n";
+import AdminPageSubheader from "admin/components/admin-page-subheader";
+import InstallThemeModal from "admin/components/modal/install-theme";
+import ThemesGrid from "admin/components/themes-grid";
+
+export default class AdminConfigAreasLookAndFeelThemes extends Component {
+  @service modal;
+  @service router;
+  @service toasts;
+
+  @action
+  installModal() {
+    this.modal.show(InstallThemeModal, {
+      model: { ...this.installThemeOptions() },
+    });
+  }
+
+  // TODO (martin) These install methods may not belong here and they
+  // are incomplete or have stubbed or omitted properties. We may want
+  // to move this to the new config route or a dedicated component
+  // that sits in the route.
+  installThemeOptions() {
+    return {
+      selectedType: "theme",
+      userId: null,
+      content: [],
+      installedThemes: this.args.themes,
+      addTheme: this.addTheme,
+      updateSelectedType: () => {},
+    };
+  }
+
+  @action
+  addTheme(theme) {
+    this.toasts.success({
+      data: {
+        message: I18n.t("admin.customize.theme.install_success", {
+          theme: theme.name,
+        }),
+      },
+      duration: 2000,
+    });
+    this.router.refresh();
+  }
+
+  <template>
+    <AdminPageSubheader
+      @titleLabel="admin.config_areas.look_and_feel.themes.title"
+      @descriptionLabel="admin.customize.theme.themes_intro_new"
+      @learnMoreUrl="https://meta.discourse.org/t/93648"
+    >
+      <:actions as |actions|>
+        <actions.Primary
+          @action={{this.installModal}}
+          @label="admin.customize.install"
+          @icon="upload"
+          class="admin-look-and-feel__install-theme"
+        />
+      </:actions>
+    </AdminPageSubheader>
+
+    <div class="admin-detail">
+      <ThemesGrid @themes={{@themes}} />
+    </div>
+  </template>
+}
diff --git a/app/assets/javascripts/admin/addon/components/modal/install-theme.js b/app/assets/javascripts/admin/addon/components/modal/install-theme.js
index a2107ac5a6e..047369f7a61 100644
--- a/app/assets/javascripts/admin/addon/components/modal/install-theme.js
+++ b/app/assets/javascripts/admin/addon/components/modal/install-theme.js
@@ -10,7 +10,7 @@ import { COMPONENTS, THEMES } from "admin/models/theme";
 
 const MIN_NAME_LENGTH = 4;
 
-export default class InstallTheme extends Component {
+export default class InstallThemeModal extends Component {
   @service store;
 
   @tracked selection = this.args.model.selection || "popular";
@@ -184,9 +184,11 @@ export default class InstallTheme extends Component {
     }
 
     if (this.remote || this.popular || this.directRepoInstall) {
-      const duplicate = this.args.model.content.find((theme) =>
-        this.themeHasSameUrl(theme, this.uploadUrl)
-      );
+      const duplicate =
+        this.args.model.content &&
+        this.args.model.content.find((theme) =>
+          this.themeHasSameUrl(theme, this.uploadUrl)
+        );
       if (duplicate && !this.duplicateRemoteThemeWarning) {
         const warning = I18n.t("admin.customize.theme.duplicate_remote_theme", {
           name: duplicate.name,
diff --git a/app/assets/javascripts/admin/addon/components/themes-grid-card.gjs b/app/assets/javascripts/admin/addon/components/themes-grid-card.gjs
index 815f6155bf3..a3f8f0e8ec8 100644
--- a/app/assets/javascripts/admin/addon/components/themes-grid-card.gjs
+++ b/app/assets/javascripts/admin/addon/components/themes-grid-card.gjs
@@ -1,13 +1,16 @@
 import Component from "@glimmer/component";
+import { tracked } from "@glimmer/tracking";
+import { array } from "@ember/helper";
 import { action } from "@ember/object";
 import { service } from "@ember/service";
-import { htmlSafe } from "@ember/template";
 import DButton from "discourse/components/d-button";
-import concatClass from "discourse/helpers/concat-class";
+import DropdownMenu from "discourse/components/dropdown-menu";
+import { popupAjaxError } from "discourse/lib/ajax-error";
 import icon from "discourse-common/helpers/d-icon";
 import i18n from "discourse-common/helpers/i18n";
 import I18n from "discourse-i18n";
 import AdminConfigAreaCard from "admin/components/admin-config-area-card";
+import DMenu from "float-kit/components/d-menu";
 import ThemesGridPlaceholder from "./themes-grid-placeholder";
 
 // NOTE (martin): We will need to revisit and improve this component
@@ -20,24 +23,28 @@ export default class ThemeCard extends Component {
   @service siteSettings;
   @service toasts;
 
+  @tracked isUpdating = false;
+
+  get themeCardClasses() {
+    return [
+      "theme-card",
+      this.args.theme.get("default") ? "-active" : "",
+      this.isUpdating ? "--updating" : "",
+    ].join(" ");
+  }
+
   get themeRouteModels() {
     return ["themes", this.args.theme.id];
   }
 
-  get childrenString() {
-    return this.args.theme.childThemes.reduce((acc, theme, idx) => {
-      if (idx === this.args.theme.childThemes.length - 1) {
-        return acc + theme.name;
-      } else {
-        return acc + theme.name + ", ";
-      }
-    }, "");
-  }
-
   get themePreviewUrl() {
     return `/admin/themes/${this.args.theme.id}/preview`;
   }
 
+  get footerActionIcon() {
+    return this.args.theme.isPendingUpdates ? "sync" : "ellipsis-h";
+  }
+
   // NOTE: inspired by -> https://github.com/discourse/discourse/blob/24caa36eef826bcdaed88aebfa7df154413fb349/app/assets/javascripts/admin/addon/controllers/admin-customize-themes-show.js#L366
   //
   // Will also need some cleanup when refactoring other theme code.
@@ -75,12 +82,43 @@ export default class ThemeCard extends Component {
     });
   }
 
+  @action
+  updateTheme() {
+    if (this.isUpdating) {
+      return;
+    }
+
+    this.isUpdating = true;
+    this.args.theme
+      .updateToLatest()
+      .then(() => {
+        this.toasts.success({
+          data: {
+            message: I18n.t("admin.customize.theme.update_success", {
+              theme: this.args.theme.name,
+            }),
+          },
+          duration: 2000,
+        });
+      })
+      .catch(popupAjaxError)
+      .finally(() => {
+        this.isUpdating = false;
+      });
+  }
+
   <template>
     <AdminConfigAreaCard
-      class={{concatClass "theme-card" (if @theme.default "-active")}}
+      class={{this.themeCardClasses}}
       @translatedHeading={{@theme.name}}
     >
       <:content>
+        {{#if @theme.isPendingUpdates}}
+          <span
+            title={{i18n "admin.customize.theme.updates_available_tooltip"}}
+            class="theme-card__update-available"
+          >{{icon "info-circle"}}</span>
+        {{/if}}
         <div class="theme-card__image-wrapper">
           {{#if @theme.screenshot_url}}
             <img
@@ -96,77 +134,78 @@ export default class ThemeCard extends Component {
           {{#if @theme.description}}
             <p class="theme-card__description">{{@theme.description}}</p>
           {{/if}}
-          {{#if @theme.childThemes}}
-            <span class="theme-card__components">{{i18n
-                "admin.customize.theme.components"
-              }}:
-              {{htmlSafe this.childrenString}}</span>
-          {{/if}}
         </div>
         <div class="theme-card__footer">
           <DButton
-            @action={{this.setDefault}}
+            @translatedLabel={{i18n "admin.customize.theme.edit"}}
+            @route="adminCustomizeThemes.show"
+            @routeModels={{this.themeRouteModels}}
+            @class="btn-primary theme-card__button"
             @preventFocus={{true}}
-            @icon={{if @theme.default "far-check-square" "far-square"}}
-            @class={{concatClass
-              "theme-card__button"
-              (if @theme.default "btn-primary" "btn-default")
-            }}
-            @translatedLabel={{i18n
-              (if
-                @theme.default
-                "admin.customize.theme.default_theme"
-                "admin.customize.theme.set_default_theme"
-              )
-            }}
-            @disabled={{@theme.default}}
           />
-          {{#if @theme.isPendingUpdates}}
-            <DButton
-              @route="adminCustomizeThemes.show"
-              @routeModels={{this.themeRouteModels}}
-              @icon="sync"
-              @class="btn btn-flat theme-card__button"
-              @title="admin.customize.theme.updates_available_tooltip"
-              @preventFocus={{true}}
-            />
-          {{else}}
-            {{#if @theme.isBroken}}
-              <DButton
-                @route="adminCustomizeThemes.show"
-                @routeModels={{this.themeRouteModels}}
-                @icon="exclamation-circle"
-                @class="btn btn-flat theme-card__button broken-indicator"
-                @title="admin.customize.theme.broken_theme_tooltip"
-                @preventFocus={{true}}
-              />
-            {{/if}}
-            {{#unless @theme.enabled}}
-              <DButton
-                @route="adminCustomizeThemes.show"
-                @routeModels={{this.themeRouteModels}}
-                @icon="ban"
-                @class="btn btn-flat theme-card__button broken-indicator light-grey-icon"
-                @title="admin.customize.theme.disabled_component_tooltip"
-                @preventFocus={{true}}
-              />
-            {{/unless}}
-          {{/if}}
+
           <div class="theme-card__footer-actions">
-            <a
-              href={{this.themePreviewUrl}}
-              title={{i18n "admin.customize.explain_preview"}}
-              rel="noopener noreferrer"
-              target="_blank"
-              class="btn btn-flat theme-card__button"
-            >{{icon "eye"}}</a>
-            <DButton
-              @route="adminCustomizeThemes.show"
-              @routeModels={{this.themeRouteModels}}
-              @icon="cog"
-              @class="btn-flat theme-card__button"
-              @preventFocus={{true}}
-            />
+            <DMenu
+              @identifier="theme-card__footer-menu"
+              @triggerClass="theme-card__footer-menu btn-flat"
+              @modalForMobile={{true}}
+              @icon={{this.footerActionIcon}}
+              @label={{if
+                this.isUpdating
+                (i18n "admin.customize.theme.updating")
+                ""
+              }}
+              @triggers={{array "click"}}
+            >
+              <:content>
+                <DropdownMenu as |dropdown|>
+                  {{#if @theme.isPendingUpdates}}
+                    <dropdown.item>
+                      <DButton
+                        @action={{this.updateTheme}}
+                        @icon="download"
+                        @class="theme-card__button -update"
+                        @preventFocus={{true}}
+                        @translatedLabel={{i18n
+                          "admin.customize.theme.update_to_latest"
+                        }}
+                      />
+                    </dropdown.item>
+                  {{/if}}
+                  {{! TODO: Jordan
+                    solutions for broken, disabled states }}
+                  <dropdown.item>
+                    <DButton
+                      @action={{this.setDefault}}
+                      @preventFocus={{true}}
+                      @icon={{if
+                        @theme.default
+                        "far-check-square"
+                        "far-square"
+                      }}
+                      @class="theme-card__button"
+                      @translatedLabel={{i18n
+                        (if
+                          @theme.default
+                          "admin.customize.theme.default_theme"
+                          "admin.customize.theme.set_default_theme"
+                        )
+                      }}
+                      @disabled={{@theme.default}}
+                    />
+                  </dropdown.item>
+                  <dropdown.item>
+                    <a
+                      href={{this.themePreviewUrl}}
+                      title={{i18n "admin.customize.explain_preview"}}
+                      rel="noopener noreferrer"
+                      target="_blank"
+                      class="btn btn-transparent theme-card__button"
+                    >{{icon "eye"}} {{i18n "admin.customize.theme.preview"}}</a>
+                  </dropdown.item>
+                </DropdownMenu>
+              </:content>
+            </DMenu>
           </div>
         </div>
       </:content>
diff --git a/app/assets/javascripts/admin/addon/components/themes-grid.gjs b/app/assets/javascripts/admin/addon/components/themes-grid.gjs
index c810318ac72..8ea1a3a7eb7 100644
--- a/app/assets/javascripts/admin/addon/components/themes-grid.gjs
+++ b/app/assets/javascripts/admin/addon/components/themes-grid.gjs
@@ -1,11 +1,5 @@
 import Component from "@glimmer/component";
-import { action } from "@ember/object";
 import { service } from "@ember/service";
-import DButton from "discourse/components/d-button";
-import icon from "discourse-common/helpers/d-icon";
-import i18n from "discourse-common/helpers/i18n";
-import AdminConfigAreaCard from "admin/components/admin-config-area-card";
-import InstallThemeModal from "../components/modal/install-theme";
 import ThemesGridCard from "./themes-grid-card";
 
 // NOTE (martin): Much of the JS code in this component is placeholder code. Much
@@ -16,6 +10,8 @@ export default class ThemesGrid extends Component {
   @service modal;
   @service router;
 
+  sortedThemes;
+
   externalResources = [
     {
       key: "admin.customize.theme.beginners_guide_title",
@@ -31,9 +27,17 @@ export default class ThemesGrid extends Component {
     },
   ];
 
-  // Always show the default theme first in the list
-  get sortedThemes() {
-    return this.args.themes.sort((a, b) => {
+  constructor() {
+    super(...arguments);
+
+    // Show default theme at the top of the list on page load,
+    // but don't move it around dynamically if the admin changes the default.
+    //
+    // TODO (martin) Figure out how to make it so we can sort default to the
+    // top but also allow the list of themes to change if an additional theme is
+    // installed. Basically don't want .get("default") to affect the sort after
+    // the first time, but if the whole array changes this needs to be recalculated.
+    this.sortedThemes = this.args.themes.sort((a, b) => {
       if (a.get("default")) {
         return -1;
       } else if (b.get("default")) {
@@ -42,78 +46,11 @@ export default class ThemesGrid extends Component {
     });
   }
 
-  // TODO (martin) These install methods may not belong here and they
-  // are incomplete or have stubbed or omitted properties. We may want
-  // to move this to the new config route or a dedicated component
-  // that sits in the route.
-  installThemeOptions() {
-    return {
-      selectedType: "theme",
-      userId: null,
-      content: null,
-      installedThemes: this.args.themes,
-      addTheme: this.addTheme,
-      updateSelectedType: () => {},
-    };
-  }
-
-  @action
-  addTheme(theme) {
-    this.refresh();
-    theme.setProperties({ recentlyInstalled: true });
-    this.router.transitionTo("adminCustomizeThemes.show", theme.get("id"), {
-      queryParams: {
-        repoName: null,
-        repoUrl: null,
-      },
-    });
-  }
-
-  @action
-  installModal() {
-    this.modal.show(InstallThemeModal, {
-      model: { ...this.installThemeOptions() },
-    });
-  }
-
   <template>
     <div class="themes-cards-container">
-      <div class="themes-cards-container__main">
-        {{#each this.sortedThemes as |theme|}}
-          <ThemesGridCard @theme={{theme}} @allThemes={{@themes}} />
-        {{/each}}
-      </div>
-      <div class="themes-cards-container__helper">
-        <AdminConfigAreaCard
-          class="theme-card"
-          @heading="admin.config_areas.look_and_feel.themes.new_theme"
-        >
-          <:content>
-            <p class="theme-card__description">{{i18n
-                "admin.customize.theme.themes_intro_new"
-              }}</p>
-            <div class="external-resources">
-              {{#each this.externalResources as |resource|}}
-                <a
-                  href={{resource.link}}
-                  class="external-link"
-                  rel="noopener noreferrer"
-                  target="_blank"
-                >
-                  {{i18n resource.key}}
-                  {{icon "external-link-alt"}}
-                </a>
-              {{/each}}
-            </div>
-            <DButton
-              @action={{this.installModal}}
-              @icon="upload"
-              @label="admin.customize.install"
-              class="btn-primary theme-card__install-button"
-            />
-          </:content>
-        </AdminConfigAreaCard>
-      </div>
+      {{#each @themes as |theme|}}
+        <ThemesGridCard @theme={{theme}} @allThemes={{@themes}} />
+      {{/each}}
     </div>
   </template>
 }
diff --git a/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel-index.js b/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel-index.js
new file mode 100644
index 00000000000..c8d4c8dd0e4
--- /dev/null
+++ b/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel-index.js
@@ -0,0 +1,10 @@
+import { service } from "@ember/service";
+import DiscourseRoute from "discourse/routes/discourse";
+
+export default class AdminConfigLookAndFeelIndexRoute extends DiscourseRoute {
+  @service router;
+
+  beforeModel() {
+    this.router.replaceWith("adminConfig.lookAndFeel.themes");
+  }
+}
diff --git a/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel.js b/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel.js
index 01f998a1d1a..d697bfb2cf9 100644
--- a/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel.js
+++ b/app/assets/javascripts/admin/addon/routes/admin-config-look-and-feel.js
@@ -5,10 +5,6 @@ import I18n from "discourse-i18n";
 export default class AdminConfigLookAndFeelRoute extends DiscourseRoute {
   @service router;
 
-  beforeModel() {
-    this.router.replaceWith("adminConfig.lookAndFeel.themes");
-  }
-
   titleToken() {
     return I18n.t("admin.config_areas.look_and_feel.title");
   }
diff --git a/app/assets/javascripts/admin/addon/templates/config-look-and-feel-themes.hbs b/app/assets/javascripts/admin/addon/templates/config-look-and-feel-themes.hbs
index 7106093a3ba..6216e218578 100644
--- a/app/assets/javascripts/admin/addon/templates/config-look-and-feel-themes.hbs
+++ b/app/assets/javascripts/admin/addon/templates/config-look-and-feel-themes.hbs
@@ -3,6 +3,4 @@
   @label={{i18n "admin.config_areas.look_and_feel.themes.title"}}
 />
 
-<div class="admin-detail">
-  <ThemesGrid @themes={{this.model}} />
-</div>
\ No newline at end of file
+<AdminConfigAreas::LookAndFeelThemes @themes={{this.model}} />
\ No newline at end of file
diff --git a/app/assets/javascripts/admin/addon/templates/config-look-and-feel.hbs b/app/assets/javascripts/admin/addon/templates/config-look-and-feel.hbs
index ad5dfcda6e4..1dacd69dcea 100644
--- a/app/assets/javascripts/admin/addon/templates/config-look-and-feel.hbs
+++ b/app/assets/javascripts/admin/addon/templates/config-look-and-feel.hbs
@@ -1,6 +1,7 @@
 <AdminPageHeader
   @titleLabel="admin.config_areas.look_and_feel.title"
   @descriptionLabel="admin.config_areas.look_and_feel.description"
+  @learnMoreUrl="https://meta.discourse.org/t/beginners-guide-to-using-discourse-themes/91966"
 >
   <:breadcrumbs>
     <DBreadcrumbsItem
diff --git a/app/assets/javascripts/discourse/app/components/global-notice.js b/app/assets/javascripts/discourse/app/components/global-notice.js
index a12b378ecda..4f526f9aef6 100644
--- a/app/assets/javascripts/discourse/app/components/global-notice.js
+++ b/app/assets/javascripts/discourse/app/components/global-notice.js
@@ -116,6 +116,15 @@ export default class GlobalNotice extends Component {
       );
     }
 
+    if (this.router.currentRoute?.queryParams?.preview_theme_id) {
+      notices.push(
+        Notice.create({
+          text: I18n.t("theme_preview_notice"),
+          id: "theme-preview",
+        })
+      );
+    }
+
     if (this.siteSettings.disable_emails === "yes") {
       notices.push(
         Notice.create({
diff --git a/app/assets/javascripts/discourse/app/instance-initializers/live-development.js b/app/assets/javascripts/discourse/app/instance-initializers/live-development.js
index 220cd14fc35..b415e4141e2 100644
--- a/app/assets/javascripts/discourse/app/instance-initializers/live-development.js
+++ b/app/assets/javascripts/discourse/app/instance-initializers/live-development.js
@@ -51,8 +51,11 @@ class LiveDevelopmentInit {
         // Refresh if necessary
         document.location.reload(true);
       } else if (me === "development-mode-theme-changed") {
-        if (window.location.pathname.startsWith("/admin/customize/themes")) {
-          // don't refresh users on routes which make theme changes - would be very inconvenient.
+        if (
+          window.location.pathname.startsWith("/admin/customize/themes") ||
+          window.location.pathname.startsWith("/admin/config/look-and-feel")
+        ) {
+          // Don't refresh users on routes which make theme changes - would be very inconvenient.
           // Instead, refresh on their next route navigation.
           this.session.requiresRefresh = true;
         } else {
diff --git a/app/assets/stylesheets/common/components/theme-card.scss b/app/assets/stylesheets/common/components/theme-card.scss
index 3cc90e9eeaf..c3c73c8651a 100644
--- a/app/assets/stylesheets/common/components/theme-card.scss
+++ b/app/assets/stylesheets/common/components/theme-card.scss
@@ -5,25 +5,60 @@
 
 .themes-cards-container {
   display: grid;
-  grid-template-columns: calc(66.66% - 0.5em) calc(33.33% - 0.5em);
+  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
   gap: 1em;
-
-  @media screen and (max-width: 1300px) {
-    display: flex;
-    flex-direction: column-reverse;
-  }
-
-  &__main {
-    display: grid;
-    grid-template-columns: repeat(auto-fill, minmax(calc(325px - 1em), 1fr));
-    gap: 1em;
-  }
 }
 
 .theme-card {
   display: flex;
   flex-direction: column;
   position: relative;
+  box-shadow: 0px 0px 0px 3px transparent;
+  transition: box-shadow 0.3s ease-in-out;
+  &.--updating {
+    animation: updating 3s ease-in-out 1,
+      updatingInfinite 3s ease-in-out 3s infinite;
+    @keyframes updating {
+      0% {
+        box-shadow: 0px 0px 0px 3px transparent;
+        border: 1px solid var(--success);
+      }
+      50% {
+        box-shadow: 0px 0px 0px 6px var(--success-low);
+        border: 1px solid var(--success);
+      }
+      100% {
+        box-shadow: 0px 0px 0px 3px var(--success-low);
+        border: 1px solid var(--success);
+      }
+    }
+    @keyframes updatingInfinite {
+      0% {
+        box-shadow: 0px 0px 0px 3px var(--success-low);
+        border: 1px solid var(--success);
+      }
+      50% {
+        box-shadow: 0px 0px 0px 6px var(--success-low);
+        border: 1px solid var(--success);
+      }
+      100% {
+        box-shadow: 0px 0px 0px 3px var(--success-low);
+        border: 1px solid var(--success);
+      }
+    }
+  }
+  &.--updating .d-icon-sync {
+    animation: rotate 3s linear infinite;
+    margin-right: 0.45em;
+    @keyframes rotate {
+      0% {
+        transform: rotate(0deg);
+      }
+      100% {
+        transform: rotate(360deg);
+      }
+    }
+  }
   .admin-config-area-card__content {
     display: flex;
     flex-direction: column;
@@ -34,16 +69,14 @@
     @include theme-card-border(tertiary);
   }
 
-  &.-disabled {
-    @include theme-card-border(primary);
-  }
-
-  &.-broken {
-    @include theme-card-border(danger);
-  }
-
-  .broken-indicator {
-    color: var(--danger);
+  &__update-available {
+    position: absolute;
+    right: -9px;
+    top: -9px;
+    color: var(--success);
+    font-size: var(--font-up-1);
+    background: var(--secondary);
+    display: flex;
   }
 
   &__icons {
@@ -139,6 +172,5 @@
   &__title {
     display: flex;
     align-items: center;
-    gap: 0.5em;
   }
 }
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index 19a3b2898ab..267675079f2 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -4740,6 +4740,8 @@ en:
     safe_mode:
       enabled: "Safe mode is enabled, to exit safe mode close this browser window"
 
+    theme_preview_notice: "You are currently previewing a theme, close this browser tab or window to return to your normal site configuration."
+
     image_removed: "(image removed)"
 
     pause_notifications:
@@ -5694,8 +5696,8 @@ en:
             move_up: "Move up"
             move_down: "Move down"
         look_and_feel:
-          title: "Look & feel"
-          description: "Themes, components, and color schemes can be used to customise and brand your Discourse site, giving it a distinctive style."
+          title: "Look and feel"
+          description: "Customize and brand your Discourse site, giving it a distinctive style."
           themes:
             title: "Themes"
             themes_intro: "Install a new theme to get started, or create your own from scratch using these resources."
@@ -5929,12 +5931,14 @@ en:
           set_default_theme: "Set default"
           default_theme: "Default theme"
           set_default_success: "Default theme set to %{theme}"
+          install_success: "%{theme} installed successfully!"
           inactive_components: "Unused components:"
           selected:
             one: "%{count} selected"
             other: "%{count} selected"
           cancel: "Cancel"
           broken_theme_tooltip: "This theme has errors in its CSS, HTML or YAML"
+          broken_theme: "Disable broken theme"
           disabled_component_tooltip: "This component has been disabled"
           default_theme_tooltip: "This theme is the site's default theme"
           updates_available_tooltip: "Updates are available for this theme"
@@ -6001,6 +6005,7 @@ en:
           update_to_latest: "Update to Latest"
           check_for_updates: "Check for Updates"
           updating: "Updating…"
+          update_success: "%{theme} Update complete"
           up_to_date: "Theme is up-to-date, last checked:"
           has_overwritten_history: "Current theme version no longer exists because the Git history has been overwritten by a force push."
           add: "Add"