diff --git a/core/modules/entity_reference/config/schema/entity_reference.schema.yml b/core/modules/entity_reference/config/schema/entity_reference.schema.yml
index 423dbc3..4357074 100644
--- a/core/modules/entity_reference/config/schema/entity_reference.schema.yml
+++ b/core/modules/entity_reference/config/schema/entity_reference.schema.yml
@@ -2,11 +2,14 @@
 
 field.entity_reference.settings:
   type: mapping
-  label: 'Settings'
+  label: 'Entity reference settings'
   mapping:
     target_type:
       type: string
       label: 'Type of item to reference'
+    target_bundle:
+      type: string
+      label: 'Budle of item to reference'
 
 field.entity_reference.instance_settings:
   type: mapping
diff --git a/core/modules/file/config/schema/file.schema.yml b/core/modules/file/config/schema/file.schema.yml
index 0fb20de..66c1cd5 100644
--- a/core/modules/file/config/schema/file.schema.yml
+++ b/core/modules/file/config/schema/file.schema.yml
@@ -23,7 +23,7 @@ file.settings:
           label: 'Directory'
 
 field.file.settings:
-  type: mapping
+  type: field.entity_reference.settings
   label: 'File settings'
   mapping:
     display_field:
@@ -43,10 +43,12 @@ field.file.value:
     - type: string
       label: 'Value'
 
-field.file.instance_settings:
+base_file_field_instance_settings:
   type: mapping
-  label: 'File settings'
   mapping:
+    handler:
+      type: string
+      label: 'Reference method'
     file_directory:
       type: string
       label: 'File directory'
@@ -56,6 +58,11 @@ field.file.instance_settings:
     max_filesize:
       type: string
       label: 'Maximum upload size'
+
+field.file.instance_settings:
+  type: base_file_field_instance_settings
+  label: 'File settings'
+  mapping:
     description_field:
       type: boolean
       label: 'Enable Description field'
diff --git a/core/modules/image/config/schema/image.schema.yml b/core/modules/image/config/schema/image.schema.yml
index 2d139a3..4f1fc79 100644
--- a/core/modules/image/config/schema/image.schema.yml
+++ b/core/modules/image/config/schema/image.schema.yml
@@ -73,41 +73,17 @@ image.settings:
       label: 'Suppress the itok query string for image derivatives'
 
 field.image.settings:
-  type: mapping
+  type: field.file.settings
   label: 'Image settings'
   mapping:
-    uri_scheme:
-      type: string
-      label: 'Upload destination'
     default_image:
       type: field_default_image
       label: 'Default value'
-    target_type:
-      type: string
-      label: 'Target type'
-    display_field:
-      type: boolean
-      label: 'Display field'
-    display_default:
-      type: boolean
-      label: 'Displayed by default'
-    target_bundle:
-      type: string
-      label: 'Target bundle'
 
 field.image.instance_settings:
-  type: mapping
+  type: base_file_field_instance_settings
   label: 'Image settings'
   mapping:
-    file_directory:
-      type: string
-      label: 'Upload destination'
-    file_extensions:
-      type: string
-      label: 'Allowed file extensions'
-    max_filesize:
-      type: string
-      label: 'Maximum upload size'
     max_resolution:
       type: string
       label: 'Maximum image resolution'
@@ -129,9 +105,6 @@ field.image.instance_settings:
     default_image:
       type: field_default_image
       label: 'Default value'
-    handler:
-      type: string
-      label: 'Handler'
 
 field.image.value:
   type: sequence
diff --git a/core/modules/taxonomy/config/schema/taxonomy.schema.yml b/core/modules/taxonomy/config/schema/taxonomy.schema.yml
index 9ca7666..5e4a22e 100644
--- a/core/modules/taxonomy/config/schema/taxonomy.schema.yml
+++ b/core/modules/taxonomy/config/schema/taxonomy.schema.yml
@@ -35,7 +35,7 @@ taxonomy.vocabulary.*:
       label: 'Weight'
 
 field.taxonomy_term_reference.settings:
-  type: mapping
+  type: field.entity_reference.settings
   label: 'Taxonomy term reference settings'
   mapping:
     options_list_callback:
@@ -54,19 +54,14 @@ field.taxonomy_term_reference.settings:
             parent:
               type: integer
               value: 'Parent'
-    target_type:
-      type: string
-      label: 'Target type'
-    target_bundle:
-      type: string
-      label: 'Target bundle'
 
 field.taxonomy_term_reference.instance_settings:
-  type: sequence
+  type: mapping
   label: 'Taxonomy term reference settings'
-  sequence:
-    - type: string
-      label: 'Setting'
+  mapping:
+    handler:
+      type: string
+      label: 'Reference method'
 
 field.taxonomy_term_reference.value:
   type: sequence