switched admin theme to GIN (plus custom module for terme_reference_tree display)

composer.json

@@ -102,6 +102,7 @@
         "drupal/flood_control": "^3.0",
         "drupal/gdpr": "^3.1",
         "drupal/genpass": "^2.0",
+        "drupal/gin": "^4.1",
         "drupal/google_analytics": "4.0.3",
         "drupal/graphql": "^4.7",
         "drupal/image_delta_formatter": "^1.2",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "607efcd894269e2d35cd5c0176f07299",
+    "content-hash": "2db68d481a2770d815865a51dab2de3b",
     "packages": [
         {
             "name": "asm89/stack-cors",
@@ -6926,6 +6926,135 @@
                 "irc": "irc://irc.freenode.org/drupal-contribute"
             }
         },
+        {
+            "name": "drupal/gin",
+            "version": "4.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://git.drupalcode.org/project/gin.git",
+                "reference": "4.1.3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://ftp.drupal.org/files/projects/gin-4.1.3.zip",
+                "reference": "4.1.3",
+                "shasum": "20fa50955fd6ea65cc8d23dbd98a3bf87b853431"
+            },
+            "require": {
+                "drupal/core": "^10.3 || ^11 <11.2",
+                "drupal/gin_toolbar": "^2.0"
+            },
+            "type": "drupal-theme",
+            "extra": {
+                "drupal": {
+                    "version": "4.1.3",
+                    "datestamp": "1768553545",
+                    "security-coverage": {
+                        "status": "covered",
+                        "message": "Covered by Drupal's security advisory policy"
+                    }
+                }
+            },
+            "notification-url": "https://packages.drupal.org/8/downloads",
+            "scripts": {
+                "phpcs": [
+                    "phpcs -s --runtime-set ignore_warnings_on_exit 1 --runtime-set ignore_errors_on_exit 0 'web/modules/custom'"
+                ]
+            },
+            "license": [
+                "GPL-2.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Sascha Eggenberger (saschaeggi)",
+                    "homepage": "https://www.drupal.org/u/saschaeggi",
+                    "role": "Maintainer"
+                },
+                {
+                    "name": "saschaeggi",
+                    "homepage": "https://www.drupal.org/user/1999056"
+                }
+            ],
+            "description": "For a better Admin and Content Editor Experience.",
+            "homepage": "https://www.drupal.org/project/gin",
+            "support": {
+                "source": "https://git.drupalcode.org/project/gin",
+                "issues": "https://www.drupal.org/project/issues/gin"
+            },
+            "funding": [
+                {
+                    "type": "github",
+                    "url": "https://github.com/sponsors/saschaeggi"
+                },
+                {
+                    "type": "other",
+                    "url": "https://paypal.me/saschaeggi"
+                }
+            ]
+        },
+        {
+            "name": "drupal/gin_toolbar",
+            "version": "2.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://git.drupalcode.org/project/gin_toolbar.git",
+                "reference": "2.1.0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://ftp.drupal.org/files/projects/gin_toolbar-2.1.0.zip",
+                "reference": "2.1.0",
+                "shasum": "b312a2dea5379ea5883d92c2a2e5f0499972a083"
+            },
+            "require": {
+                "drupal/core": "^10 || ^11 <11.2"
+            },
+            "type": "drupal-module",
+            "extra": {
+                "drupal": {
+                    "version": "2.1.0",
+                    "datestamp": "1750245881",
+                    "security-coverage": {
+                        "status": "covered",
+                        "message": "Covered by Drupal's security advisory policy"
+                    }
+                }
+            },
+            "notification-url": "https://packages.drupal.org/8/downloads",
+            "license": [
+                "GPL-2.0+"
+            ],
+            "authors": [
+                {
+                    "name": "Sascha Eggenberger (saschaeggi)",
+                    "homepage": "https://www.drupal.org/u/saschaeggi",
+                    "role": "Maintainer"
+                },
+                {
+                    "name": "saschaeggi",
+                    "homepage": "https://www.drupal.org/user/1999056"
+                }
+            ],
+            "description": "Gin Toolbar for Frontend use",
+            "homepage": "https://www.drupal.org/project/gin_toolbar",
+            "keywords": [
+                "Drupal"
+            ],
+            "support": {
+                "source": "http://cgit.drupalcode.org/gin_toolbar",
+                "issues": "https://www.drupal.org/project/issues/gin_toolbar"
+            },
+            "funding": [
+                {
+                    "type": "github",
+                    "url": "https://github.com/sponsors/saschaeggi"
+                },
+                {
+                    "type": "other",
+                    "url": "https://paypal.me/saschaeggi"
+                }
+            ]
+        },
         {
             "name": "drupal/google_analytics",
             "version": "4.0.3",

config/sync/adminimal_theme.settings.yml

@@ -1,9 +0,0 @@
-features:
-  node_user_picture: false
-  comment_user_picture: true
-  comment_user_verification: true
-  favicon: 1
-logo:
-  use_default: 1
-_core:
-  default_config_hash: Pawk313dlmTas62LfDspeCxjQbNtOVl3_Uyi3REvu1A

config/sync/block.block.adminimal_theme_login.yml

@@ -1,22 +0,0 @@
-uuid: 00e949ca-6226-408c-99b4-51eb5cce1ae8
-langcode: en
-status: true
-dependencies:
-  module:
-    - user
-  theme:
-    - adminimal_theme
-_core:
-  default_config_hash: 862sIulDdHmF0vBU1s2j2_a_CwkxursrL0pIrMDzzOg
-id: adminimal_theme_login
-theme: adminimal_theme
-region: content
-weight: 10
-provider: null
-plugin: user_login_block
-settings:
-  id: user_login_block
-  label: 'User login'
-  label_display: visible
-  provider: user
-visibility: {  }

config/sync/block.block.claro_breadcrumbs.yml

@@ -1,15 +1,15 @@
-uuid: e87279bd-129c-4d21-ab47-e65725cea7dd
+uuid: e58c9554-72a1-437e-a32c-175659241607
 langcode: en
 status: true
 dependencies:
   module:
     - system
   theme:
-    - adminimal_theme
+    - claro
 _core:
-  default_config_hash: 8by5KRsb7ZpmjHj0ms1d7xAG_xH54AWsOX6spDLJ59U
+  default_config_hash: NjcxOBrPOiK5-38t56DwFBDVY4yer7YSlbRWXFuHe7A
-id: adminimal_theme_breadcrumbs
+id: claro_breadcrumbs
-theme: adminimal_theme
+theme: claro
 region: breadcrumb
 weight: 0
 provider: null

config/sync/block.block.claro_content.yml

@@ -1,15 +1,15 @@
-uuid: f39e652b-a559-493e-b51f-827f5754e0cc
+uuid: 37741b53-2634-405d-b8cd-2fc81e5240ec
 langcode: en
 status: true
 dependencies:
   module:
     - system
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: BlNSz6WPq_9ciuNhB084tFZB4h4tU_kMemH7FGemEWg
+  default_config_hash: a0Yyx1GeyKarZ4T_yXQBR_ZFKnXiFLtxAb6gWLd8nr0
-id: matminimal_content
+id: claro_content
-theme: matminimal
+theme: claro
 region: content
 weight: 0
 provider: null

config/sync/block.block.claro_help.yml

@@ -1,15 +1,15 @@
-uuid: 3acdde3f-5b1d-4e30-b766-54cd3b9766a1
+uuid: bf3e42aa-ea64-4c71-8f19-57c781b6b79c
 langcode: en
 status: true
 dependencies:
   module:
     - help
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: ucMk2FYh45Dz_S_GLmvzn8WbWXzifLBVy4JcDES87WM
+  default_config_hash: jccFSSVqV0WCDb6NtML1VWAWTtDbZ-zn5YgTRMgMrIM
-id: matminimal_help
+id: claro_help
-theme: matminimal
+theme: claro
 region: help
 weight: 0
 provider: null

config/sync/block.block.claro_local_actions.yml

@@ -1,13 +1,13 @@
-uuid: e3176c37-8d5d-47eb-b1d8-d42c094241d5
+uuid: 011ec8b9-28da-4360-8df9-55b0c3c00bd6
 langcode: en
 status: true
 dependencies:
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: aCyPNuMz56ZbH8auMeZZeKGMKzO53IwX8rXiWcu_UCA
+  default_config_hash: CdXfDmRgAvms7EQovxxWPdYi0GitxeRbVtScYK16ZH0
-id: matminimal_local_actions
+id: claro_local_actions
-theme: matminimal
+theme: claro
 region: content
 weight: -10
 provider: null

config/sync/block.block.claro_messages.yml

@@ -1,15 +1,15 @@
-uuid: cded6c78-ecd4-4e31-b8e2-cfde506df5a6
+uuid: 4d846cfb-f623-41c8-8d45-3467db7bed30
 langcode: en
 status: true
 dependencies:
   module:
     - system
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: 446KyRw4ws5QsAoohT2XtSZDr2WOEVSOu650fwm4T-k
+  default_config_hash: '-Ac3ISpIT0PQ-whzD7_dw0SdKi6dAbRFNWdSjOiVDqg'
-id: matminimal_messages
+id: claro_messages
-theme: matminimal
+theme: claro
 region: highlighted
 weight: 0
 provider: null

config/sync/block.block.claro_page_title.yml

@@ -1,13 +1,13 @@
-uuid: 403e7822-59c5-43b1-b625-2934c1fcab3d
+uuid: d570c63a-ebcd-4535-a71c-05fd58ba2c2d
 langcode: en
 status: true
 dependencies:
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: TrJQ5nNEMQI1XWnz-jxEzAuPu8RA4r6KmRqIEp8Jtqw
+  default_config_hash: fNwDdW063tk_ktzSWzZVeQS9wzvLooVO280BQ9WrsIs
-id: matminimal_page_title
+id: claro_page_title
-theme: matminimal
+theme: claro
 region: header
 weight: -30
 provider: null

config/sync/block.block.claro_primary_local_tasks.yml

@@ -1,13 +1,13 @@
-uuid: 6a239d6e-89b4-4e15-886d-6df296eeb40a
+uuid: 759758f6-4928-4005-9c51-e96985ca103b
 langcode: en
 status: true
 dependencies:
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: oI24LNAQnSK7BKcLSk5XxMohBFJKTzuoaZ0-5nQI6Ng
+  default_config_hash: ACjBZI5shAMiiUpsz-inLYVXDqNNXRnSzAWV3kV_8Hw
-id: matminimal_primary_local_tasks
+id: claro_primary_local_tasks
-theme: matminimal
+theme: claro
 region: header
 weight: 0
 provider: null

config/sync/block.block.claro_secondary_local_tasks.yml

@@ -1,13 +1,13 @@
-uuid: bc3b02cb-de5d-45fd-b700-6e71847e05fd
+uuid: 0ab23859-0a62-4db7-839a-a907df5653b4
 langcode: en
 status: true
 dependencies:
   theme:
-    - matminimal
+    - claro
 _core:
-  default_config_hash: hnshSujVSrLEmdnW_GsJk4o-DwwuUwTgGU2NNxyZy_E
+  default_config_hash: 2L0geP-ixCbCkEpW6BVF6H7vDUZN4ea07_Y9CociQm4
-id: matminimal_secondary_local_tasks
+id: claro_secondary_local_tasks
-theme: matminimal
+theme: claro
 region: pre_content
 weight: 0
 provider: null

config/sync/block.block.gin_breadcrumbs.yml

@@ -0,0 +1,22 @@
+uuid: 3a30a65d-4c69-4db9-942a-a84e2e1698b0
+langcode: en
+status: true
+dependencies:
+  module:
+    - system
+  theme:
+    - gin
+_core:
+  default_config_hash: y9X3xgCsO59pQyzNLzY1D3SDJJxCHILLWkpPnmuTJ2E
+id: gin_breadcrumbs
+theme: gin
+region: breadcrumb
+weight: 0
+provider: null
+plugin: system_breadcrumb_block
+settings:
+  id: system_breadcrumb_block
+  label: Breadcrumbs
+  label_display: '0'
+  provider: system
+visibility: {  }

config/sync/block.block.gin_content.yml

@@ -1,15 +1,15 @@
-uuid: ac411d7b-fd31-4d97-b96f-0a74c66d18c0
+uuid: 0eca51c0-6c89-496c-bd89-36259f9456fb
 langcode: en
 status: true
 dependencies:
   module:
     - system
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: 80N66GdzEvwqi1m-_GZ-ulkk8AJG9beoXcZ4-pMVKjI
+  default_config_hash: hBHXB7hC05XU7pDYzETt-GUcpFlogK1gkjyAsg0Ym58
-id: adminimal_theme_content
+id: gin_content
-theme: adminimal_theme
+theme: gin
 region: content
 weight: 0
 provider: null

config/sync/block.block.gin_help.yml

@@ -1,15 +1,15 @@
-uuid: af7eb2f8-8d22-4f50-bc9d-1f361f4d5314
+uuid: 157367b3-9c92-403c-ac36-7b59788db4c8
 langcode: en
 status: true
 dependencies:
   module:
     - help
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: PfozGAnWQRNy00G6KEnZjIu9b2lGuWg-j-GT_-Ejglc
+  default_config_hash: 8nOAry2oKqJOr0zbrlJ3sZHDFJLIO6j-0vT0K_TYca4
-id: adminimal_theme_help
+id: gin_help
-theme: adminimal_theme
+theme: gin
 region: help
 weight: 0
 provider: null

config/sync/block.block.gin_local_actions.yml

@@ -1,13 +1,13 @@
-uuid: fc91517b-1dbd-44d4-b074-02d0295d93af
+uuid: 7121f169-c890-4285-9c41-4ce557d292c0
 langcode: en
 status: true
 dependencies:
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: ik4PTMlBD0MWansnSMpSXq5SUlWRJ1IVVt6C7AIbQmc
+  default_config_hash: OQ9aJ-4qVwK1x00o9EOYK4eFDjQr_HLpbPiJaPSVZiQ
-id: adminimal_theme_local_actions
+id: gin_local_actions
-theme: adminimal_theme
+theme: gin
 region: content
 weight: -10
 provider: null

config/sync/block.block.gin_messages.yml

@@ -1,15 +1,15 @@
-uuid: 32029ead-92c4-47d5-9f34-29989237c458
+uuid: c226a098-94ea-43d5-8ccc-fc8acd965fae
 langcode: en
 status: true
 dependencies:
   module:
     - system
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: YqKTtloWJ8FjLtfVNfrHaK6kVgxT67lC1cJ3j6i6WLo
+  default_config_hash: WvPhI8OwllG0gE69-F8qL3ai3nd5SbYD6JpmEuZcyok
-id: adminimal_theme_messages
+id: gin_messages
-theme: adminimal_theme
+theme: gin
 region: highlighted
 weight: 0
 provider: null

config/sync/block.block.gin_page_title.yml

@@ -1,13 +1,13 @@
-uuid: 239e4199-5465-451a-ade4-230f0e9c1a94
+uuid: faa90181-7878-4a26-a19b-a2268605236e
 langcode: en
 status: true
 dependencies:
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: Z3nlZUh2mSJP3apMrJWt-duS-aLyP79rcfu_0wpPmDs
+  default_config_hash: HLQY2xgby8K3vN_98hiOSasOhm9pdCsH234-s0duJ8Q
-id: adminimal_theme_page_title
+id: gin_page_title
-theme: adminimal_theme
+theme: gin
 region: header
 weight: -30
 provider: null

config/sync/block.block.gin_primary_local_tasks.yml

@@ -1,13 +1,13 @@
-uuid: cc6bfeb2-e3fe-42c2-96af-12c45092e478
+uuid: 5a7eb531-08a5-4e27-8aa9-3f5724c165db
 langcode: en
 status: true
 dependencies:
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: CyX_aDKAka2_eihevNLscCHDYrzDgIqwWzFVEFRKIww
+  default_config_hash: Hh01DLj9k7UnNdPpOQXHZHW7GHf2OPNDQyCJF7_R9ac
-id: adminimal_theme_primary_local_tasks
+id: gin_primary_local_tasks
-theme: adminimal_theme
+theme: gin
 region: header
 weight: 0
 provider: null

config/sync/block.block.gin_secondary_local_tasks.yml

@@ -1,13 +1,13 @@
-uuid: e589835e-0479-452c-9686-46a63bae4fdc
+uuid: f9fb0521-8dc1-41c9-bfcb-59ac5bb00b9e
 langcode: en
 status: true
 dependencies:
   theme:
-    - adminimal_theme
+    - gin
 _core:
-  default_config_hash: DJ7Om1C2xWr2GI8CjZaZtyWpP-0S3hRR3oROZl1oesc
+  default_config_hash: BCWhood0xXFQYqxFgL1spXdb9KeIuXH1YvTdjIEedDg
-id: adminimal_theme_secondary_local_tasks
+id: gin_secondary_local_tasks
-theme: adminimal_theme
+theme: gin
 region: pre_content
 weight: 0
 provider: null

config/sync/block.block.matminimal_breadcrumbs.yml

@@ -1,30 +0,0 @@
-uuid: 6844a7d0-31bc-4cea-a72b-c0bb4c29b530
-langcode: en
-status: true
-dependencies:
-  module:
-    - system
-    - user
-  theme:
-    - matminimal
-_core:
-  default_config_hash: 84K5xNLNmM7MeFs4CG09vGXFdHmNTNSYeppjzVQceL4
-id: matminimal_breadcrumbs
-theme: matminimal
-region: breadcrumb
-weight: 0
-provider: null
-plugin: system_breadcrumb_block
-settings:
-  id: system_breadcrumb_block
-  label: Breadcrumbs
-  label_display: '0'
-  provider: system
-visibility:
-  user_role:
-    id: user_role
-    negate: false
-    context_mapping:
-      user: '@user.current_user_context:current_user'
-    roles:
-      root: root

config/sync/block.block.matminimal_login.yml

@@ -1,22 +0,0 @@
-uuid: 7286997c-90ed-48da-a4e9-c18fb0feb974
-langcode: en
-status: true
-dependencies:
-  module:
-    - user
-  theme:
-    - matminimal
-_core:
-  default_config_hash: LH8eG33s_xdvbTg0S_jtOTku11tLnM9ZK62tjnZiEyk
-id: matminimal_login
-theme: matminimal
-region: content
-weight: 10
-provider: null
-plugin: user_login_block
-settings:
-  id: user_login_block
-  label: 'User login'
-  label_display: visible
-  provider: user
-visibility: {  }

config/sync/core.entity_form_display.node.materiau.default.yml

@@ -171,13 +171,16 @@ third_party_settings:
       region: content
       parent_name: ''
       weight: 1
-      format_type: tab
+      format_type: details_sidebar
       format_settings:
         classes: ''
+        show_empty_fields: false
         id: ''
-        formatter: open
+        label_as_html: false
+        open: true
         description: ''
         required_fields: true
+        weight: -100
 id: node.materiau.default
 targetEntityType: node
 bundle: materiau

config/sync/core.extension.yml

@@ -95,6 +95,7 @@ module:
   gdpr_fields: 0
   gdpr_tasks: 0
   genpass: 0
+  gin_toolbar: 0
   graphql: 0
   help: 0
   honeypot: 0
@@ -126,6 +127,7 @@ module:
   mailjet_event: 0
   maillog: 0
   masquerade: 0
+  materio_admin: 0
   materio_commerce: 0
   materio_decoupled: 0
   materio_expo: 0
@@ -239,8 +241,7 @@ module:
 theme:
   stable: 0
   classy: 0
-  seven: 0
-  adminimal_theme: 0
-  matminimal: 0
   materiotheme: 0
+  claro: 0
+  gin: 0
 profile: figli_starter_kit

config/sync/gin.settings.yml

@@ -0,0 +1,26 @@
+_core:
+  default_config_hash: c8aZhkIY8zHUo0_UOll4vVs_l48dHL_gBqbvfuAM0Rs
+favicon:
+  use_default: true
+features:
+  comment_user_picture: true
+  comment_user_verification: true
+  favicon: true
+  node_user_picture: false
+logo:
+  use_default: true
+third_party_settings:
+  shortcut:
+    module_link: true
+preset_accent_color: blue
+preset_focus_color: gin
+enable_darkmode: '1'
+classic_toolbar: horizontal
+secondary_toolbar_frontend: true
+high_contrast_mode: false
+accent_color: ''
+focus_color: ''
+layout_density: small
+show_description_toggle: false
+show_user_theme_settings: false
+sticky_action_buttons: true

config/sync/language/fr/block.block.adminimal_theme_login.yml

@@ -1,2 +0,0 @@
-settings:
-  label: 'Connexion utilisateur'

config/sync/language/fr/block.block.matminimal_login.yml

@@ -1,2 +0,0 @@
-settings:
-  label: 'Connexion utilisateur'

config/sync/matminimal.settings.yml

@@ -1,12 +0,0 @@
-features:
-  node_user_picture: false
-  comment_user_picture: true
-  comment_user_verification: true
-  favicon: 1
-logo:
-  use_default: 1
-favicon:
-  use_default: 0
-  path: themes/custom/matminimal/icon.png
-  mimetype: image/png
-custom_css: 0

config/sync/system.theme.yml

@@ -1,4 +1,4 @@
 _core:
   default_config_hash: TpdA4rsOBAawnqeon9A-Ooht_4VO3hHKib79xyHcTyg
-admin: matminimal
+admin: gin
 default: materiotheme

web/modules/custom/materio_admin/css/term-reference-tree.css

@@ -0,0 +1,17 @@
+/**
+ * Term reference tree widget: selection tree on the left, sortable track
+ * list on the right. Transposed from the retired matminimal theme.
+ */
+.term-reference-tree > ul,
+.term-reference-tree aside.term-reference-tree-track-list {
+  display: inline-block;
+  vertical-align: top;
+}
+.term-reference-tree > ul {
+  padding-right: 1em;
+  min-width: 45%;
+}
+.term-reference-tree aside.term-reference-tree-track-list {
+  border-left: 1px solid #aaa;
+  padding-left: 1em;
+}

web/modules/custom/materio_admin/materio_admin.info.yml

@@ -0,0 +1,7 @@
+name: 'Materio Admin'
+type: module
+description: 'Admin back-office enhancements (widget layouts and theming support for the Gin admin theme).'
+package: Materio
+core_version_requirement: ^10 || ^11
+dependencies:
+  - 'term_reference_tree'

web/modules/custom/materio_admin/materio_admin.libraries.yml

@@ -0,0 +1,5 @@
+term_reference_tree:
+  version: 1.0
+  css:
+    theme:
+      css/term-reference-tree.css: {}

web/modules/custom/materio_admin/materio_admin.module

@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * @file
+ * Admin back-office enhancements.
+ */
+
+use Drupal\term_reference_tree\Plugin\Field\FieldWidget\TermReferenceTree;
+
+/**
+ * Implements hook_field_widget_single_element_form_alter().
+ *
+ * Attaches the widget layout library wherever the term reference tree widget
+ * renders (thesaurus on materiau, etc.), so the selection tree (left) and the
+ * sortable track list (right) sit side by side.
+ *
+ * Transposed from the retired matminimal theme CSS, which was tied to the old
+ * adminimal-based admin theme. The selectors target the widget's own markup
+ * classes and are admin-theme agnostic (works under Gin 4 and Gin 5).
+ */
+function materio_admin_field_widget_single_element_form_alter(array &$element, \Drupal\Core\Form\FormStateInterface $form_state, array $context) {
+  if (isset($context['widget']) && $context['widget'] instanceof TermReferenceTree) {
+    $element['#attached']['library'][] = 'materio_admin/term_reference_tree';
+  }
+}