Add display for free form license text.

config/optional/core.entity_form_display.paragraph.license_attribution.default.yml

@@ -1,15 +1,18 @@
+uuid: 20c075d8-ec9f-407a-8564-9918dfff6dd6
 langcode: en
 status: true
 dependencies:
   config:
     - field.field.paragraph.license_attribution.field_attribution_author
+    - field.field.paragraph.license_attribution.field_attribution_note
     - field.field.paragraph.license_attribution.field_attribution_source
     - field.field.paragraph.license_attribution.field_license
     - paragraphs.paragraphs_type.license_attribution
   module:
     - link
+    - text
 _core:
-  default_config_hash: TX7aCKFhicHNk-Ce09bQTNTKUZhRXX0QsSWzjuGutWA
+  default_config_hash: WCcyeF8AktyxDRFDYOVNNyfYpTfjnlsm53vdo1EP968
 id: paragraph.license_attribution.default
 targetEntityType: paragraph
 bundle: license_attribution
@@ -23,6 +26,14 @@ content:
     third_party_settings: {  }
     type: link_default
     region: content
+  field_attribution_note:
+    weight: 3
+    settings:
+      size: 80
+      placeholder: ''
+    third_party_settings: {  }
+    type: text_textfield
+    region: content
   field_attribution_source:
     weight: 0
     settings:

config/optional/field.field.paragraph.license_attribution.field_attribution_note.yml

@@ -0,0 +1,21 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.paragraph.field_attribution_note
+    - paragraphs.paragraphs_type.license_attribution
+  module:
+    - text
+third_party_settings: {  }
+id: paragraph.license_attribution.field_attribution_note
+field_name: field_attribution_note
+entity_type: paragraph
+bundle: license_attribution
+label: 'Free-form Attribution Note'
+description: 'Specify custom attribution and / or copyright info. E.g., "All rights reserved. Used with permission."'
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings: {  }
+field_type: text

config/optional/field.field.paragraph.license_attribution.field_license.yml

@@ -11,7 +11,7 @@ entity_type: paragraph
 bundle: license_attribution
 label: License
 description: ''
-required: true
+required: false
 translatable: false
 default_value: {  }
 default_value_callback: ''

config/optional/field.storage.paragraph.field_attribution_note.yml

@@ -0,0 +1,20 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - paragraphs
+    - text
+third_party_settings: {  }
+id: paragraph.field_attribution_note
+field_name: field_attribution_note
+entity_type: paragraph
+type: text
+settings:
+  max_length: 1024
+module: text
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false

media_attribution.module

@@ -91,8 +91,8 @@ function media_attribution_preprocess_entity_embed_container(&$variables) {
 
     $source = $attribution->get('field_attribution_source')->getValue()[0];
     $license = $attribution->get('field_license')->entity;
-    $license_link = $license->get('field_license_link')->getValue()[0];
-
+    $license_link = !empty($license) ? $license->get('field_license_link')->getValue()[0] : FALSE;
+    $attribution_note = $attribution->get('field_attribution_note')->getValue()[0];
     $attribution_text = [
       'source' => [
         '#type' => 'link',
@@ -109,6 +109,7 @@ function media_attribution_preprocess_entity_embed_container(&$variables) {
       '#title' => $author['title'],
       '#prefix' => ' ' . t('by') . ' ',
       '#url' => Url::fromUri($author['uri']),
+      '#suffix' => '. ',
     ];
   }
   if (!empty($license_link)) {
@@ -121,7 +122,13 @@ function media_attribution_preprocess_entity_embed_container(&$variables) {
 
     ];
   }
-
+  if (!empty($attribution_note)) {
+    $attribution_text['note'] = [
+      '#type' => 'markup',
+      '#markup' => $attribution_note['value'],
+      '#prefix' => ' ',
+    ];
+  }
   $variables['children'] = [
     'first' => [
       '#type' => 'markup',