diff --git a/config/install/field.field.taxonomy_term.sites.field_short_name.yml b/config/install/field.field.taxonomy_term.sites.field_short_name.yml
new file mode 100644
index 0000000..4b5a036
--- /dev/null
+++ b/config/install/field.field.taxonomy_term.sites.field_short_name.yml
@@ -0,0 +1,19 @@
+uuid: 3bfef526-070c-4a20-a671-7e4cd7799bc3
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.taxonomy_term.field_short_name
+    - taxonomy.vocabulary.sites
+id: taxonomy_term.sites.field_short_name
+field_name: field_short_name
+entity_type: taxonomy_term
+bundle: sites
+label: 'Short name'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings: {  }
+field_type: string
diff --git a/config/install/field.field.taxonomy_term.sites.field_site_app_icon.yml b/config/install/field.field.taxonomy_term.sites.field_site_app_icon.yml
new file mode 100644
index 0000000..c4e311b
--- /dev/null
+++ b/config/install/field.field.taxonomy_term.sites.field_site_app_icon.yml
@@ -0,0 +1,38 @@
+uuid: 148ec44d-98a7-489f-af6a-c39ef740b4aa
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.taxonomy_term.field_site_app_icon
+    - taxonomy.vocabulary.sites
+  module:
+    - image
+id: taxonomy_term.sites.field_site_app_icon
+field_name: field_site_app_icon
+entity_type: taxonomy_term
+bundle: sites
+label: 'Site app icon'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'default:file'
+  handler_settings: {  }
+  file_directory: '[date:custom:Y]-[date:custom:m]'
+  file_extensions: 'png gif jpg jpeg webp'
+  max_filesize: ''
+  max_resolution: 512x512
+  min_resolution: 512x512
+  alt_field: true
+  alt_field_required: true
+  title_field: false
+  title_field_required: false
+  default_image:
+    uuid: ''
+    alt: ''
+    title: ''
+    width: null
+    height: null
+field_type: image
diff --git a/config/install/field.field.taxonomy_term.sites.field_site_favicon.yml b/config/install/field.field.taxonomy_term.sites.field_site_favicon.yml
index e2066c8..601f16d 100644
--- a/config/install/field.field.taxonomy_term.sites.field_site_favicon.yml
+++ b/config/install/field.field.taxonomy_term.sites.field_site_favicon.yml
@@ -22,8 +22,8 @@ settings:
   file_directory: '[date:custom:Y]-[date:custom:m]'
   file_extensions: 'png gif jpg jpeg'
   max_filesize: ''
-  max_resolution: ''
-  min_resolution: ''
+  max_resolution: 128x128
+  min_resolution: 128x128
   alt_field: true
   alt_field_required: true
   title_field: false
diff --git a/config/install/field.storage.taxonomy_term.field_short_name.yml b/config/install/field.storage.taxonomy_term.field_short_name.yml
new file mode 100644
index 0000000..2889afc
--- /dev/null
+++ b/config/install/field.storage.taxonomy_term.field_short_name.yml
@@ -0,0 +1,21 @@
+uuid: 8fddc614-5935-4014-8a0a-9c4a200ddea9
+langcode: en
+status: true
+dependencies:
+  module:
+    - taxonomy
+id: taxonomy_term.field_short_name
+field_name: field_short_name
+entity_type: taxonomy_term
+type: string
+settings:
+  max_length: 12
+  case_sensitive: false
+  is_ascii: false
+module: core
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/config/install/field.storage.taxonomy_term.field_site_app_icon.yml b/config/install/field.storage.taxonomy_term.field_site_app_icon.yml
new file mode 100644
index 0000000..2628ef9
--- /dev/null
+++ b/config/install/field.storage.taxonomy_term.field_site_app_icon.yml
@@ -0,0 +1,34 @@
+uuid: 5701f011-5ad2-46d5-9b59-24c52ed1fd36
+langcode: en
+status: true
+dependencies:
+  module:
+    - field_permissions
+    - file
+    - image
+    - taxonomy
+third_party_settings:
+  field_permissions:
+    permission_type: public
+id: taxonomy_term.field_site_app_icon
+field_name: field_site_app_icon
+entity_type: taxonomy_term
+type: image
+settings:
+  target_type: file
+  display_field: false
+  display_default: false
+  uri_scheme: public
+  default_image:
+    uuid: ''
+    alt: ''
+    title: ''
+    width: null
+    height: null
+module: image
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/modules/tide_site_theming/src/TideSiteThemingOperation.php b/modules/tide_site_theming/src/TideSiteThemingOperation.php
index 37fc435..8710e5c 100644
--- a/modules/tide_site_theming/src/TideSiteThemingOperation.php
+++ b/modules/tide_site_theming/src/TideSiteThemingOperation.php
@@ -130,6 +130,38 @@ public function requiredChangesForTheming() {
       ];
       $entity_form_display->setThirdPartySetting('field_group', 'group_site_favicon_value', $field_group['group_site_favicon_value']);
 
+      // Adds app icon.
+      $entity_form_display->setComponent('field_site_app_icon', [
+        'type' => 'image_image',
+        'weight' => 20,
+        'region' => 'content',
+        'settings' => [
+          'progress_indicator' => 'throbber',
+          'preview_image_style' => 'thumbnail',
+        ],
+        'third_party_settings' => [],
+      ]);
+      $field_group = $entity_form_display->getThirdPartySettings('field_group');
+      $field_group['group_site_app_icon'] = [
+        'children' => [
+          'field_site_app_icon',
+        ],
+        'parent_name' => '',
+        'label' => 'Site app icon',
+        'weight' => 19,
+        'format_type' => 'details',
+        'region' => 'content',
+        'format_settings' => [
+          'classes' => '',
+          'show_empty_fields' => FALSE,
+          'id' => 'tide-site-app-icon',
+          'open' => FALSE,
+          'required_fields' => TRUE,
+          'effect' => 'none',
+        ],
+      ];
+      $entity_form_display->setThirdPartySetting('field_group', 'group_site_app_icon', $field_group['group_site_app_icon']);
+
       // Adds header corner graphics.
       $entity_form_display->setComponent('field_top_corner_graphic', [
         'type' => 'image_image',
@@ -219,7 +251,7 @@ public function requiredChangesForTheming() {
         ],
         'third_party_settings' => [],
       ])->save();
-      $entity_view_display->setComponent('field_top_corner_graphic', [
+      $entity_view_display->setComponent('field_site_app_icon', [
         'type' => 'image',
         'weight' => 19,
         'label' => 'above',
@@ -238,7 +270,7 @@ public function requiredChangesForTheming() {
         ],
         'third_party_settings' => [],
       ])->save();
-      $entity_view_display->setComponent('field_bottom_corner_graphic', [
+      $entity_view_display->setComponent('field_top_corner_graphic', [
         'type' => 'image',
         'weight' => 20,
         'label' => 'above',
@@ -257,6 +289,25 @@ public function requiredChangesForTheming() {
         ],
         'third_party_settings' => [],
       ])->save();
+      $entity_view_display->setComponent('field_bottom_corner_graphic', [
+        'type' => 'image',
+        'weight' => 21,
+        'label' => 'above',
+        'region' => 'content',
+        'settings' => [
+          'image_link' => '',
+          'image_style' => '',
+          'svg_attributes' => [
+            'width' => NULL,
+            'height' => NULL,
+          ],
+          'svg_render_as_image' => TRUE,
+          'image_loading' => [
+            'attribute' => 'lazy',
+          ],
+        ],
+        'third_party_settings' => [],
+      ])->save();
     }
 
     // Grant view preview links block to default roles from tide_core.
@@ -272,6 +323,7 @@ public function requiredChangesForTheming() {
       'field_site_theme_values',
       'field_site_feature_flags',
       'field_site_favicon',
+      'field_site_app_icon',
       'field_top_corner_graphic',
       'field_bottom_corner_graphic',
     ];
diff --git a/modules/tide_site_theming/tide_site_theming.install b/modules/tide_site_theming/tide_site_theming.install
index 61fedd0..5948d7f 100644
--- a/modules/tide_site_theming/tide_site_theming.install
+++ b/modules/tide_site_theming/tide_site_theming.install
@@ -215,3 +215,28 @@ function tide_site_theming_update_8001() {
   }
   $config->save();
 }
+
+/**
+ * Add site app icon  and short name fields.
+ */
+function tide_site_theming_update_10001() {
+  $configs = [
+    'field.storage.taxonomy_term.field_short_name' => 'field_storage_config',
+    'field.storage.taxonomy_term.field_site_app_icon' => 'field_storage_config',
+    'field.field.taxonomy_term.sites.field_short_name' => 'field_config',
+    'field.field.taxonomy_term.sites.field_site_app_icon' => 'field_config',
+  ];
+  module_load_include('inc', 'tide_core', 'includes/helpers');
+  $config_location = [\Drupal::service('extension.list.module')->getPath('tide_site') . '/config/install'];
+  // Check if field already exported to config/sync.
+  foreach ($configs as $config => $type) {
+    $config_read = _tide_read_config($config, $config_location, TRUE);
+    $storage = \Drupal::entityTypeManager()->getStorage($type);
+    $id = $storage->getIDFromConfigName($config, $storage->getEntityType()->getConfigPrefix());
+    if ($storage->load($id) == NULL) {
+      $config_entity = $storage->createFromStorageRecord($config_read);
+      $config_entity->save();
+    }
+  }
+
+}