diff --git a/core/config/schema/core.data_types.schema.yml b/core/config/schema/core.data_types.schema.yml
index 2eb112b..b5337c3 100644
--- a/core/config/schema/core.data_types.schema.yml
+++ b/core/config/schema/core.data_types.schema.yml
@@ -728,33 +728,25 @@ field.float.value:
           type: float
           label: 'Value'
 
-# Human readable string that is associated with a format.
+# Text with a text format.
 text_format:
   type: mapping
   label: 'Text with text format'
-  # Even though it is not sensible to translate the text format of a formatted
-  # string, we conceive of the text and its date format as a single composite
-  # object and declare that object (or in other words the entire mapping) as
-  # translatable. This causes the entire mapping to be saved to the language
-  # overrides of the configuration. Storing only the (to be formatted) text
-  # could result in security problems in case the text format of the source
-  # text is changed.
+  # We declare the entire mapping of text and text format as translatable. This
+  # causes the entire mapping to be saved to the language overrides of the
+  # configuration. Storing only the (to be formatted) text could result in
+  # security problems in case the text format of the source text is changed.
   translatable: true
   mapping:
     value:
       type: text
       label: 'Text'
-      # locale.module integrates the language overrides of shipped configuration
-      # with https://localize.drupal.org. Because it only handles strings and
-      # cannot deal with complex data structures, it parses the configuration
-      # schema until it reaches a primitive and only then checks whether the
-      # element is translatable.
+      # Mark the actual text as translatable (in addition to the entire mapping
+      # being marked as translatable) so that shipped configuration with
+      # formatted text can participate in the string translation system.
       translatable: true
     format:
       type: string
       label: 'Text format'
-      # Even though the entire 'text_format' is marked as translatable for the
-      # sake of language configuration overrides, the ID of the text format of
-      # texts in shipped configuration should not be exposed to
-      # https://localize.drupal.org
-
+      # The text format should not be translated as part of the string
+      # translation system, so this is not marked as translatable.