diff --git a/core/themes/seven/seven.theme b/core/themes/seven/seven.theme
index 43f6f80..8563c87 100644
--- a/core/themes/seven/seven.theme
+++ b/core/themes/seven/seven.theme
@@ -145,8 +145,6 @@ function seven_preprocess_custom_block_add_list(&$variables) {
 
 /**
  * Implements hook_preprocess_HOOK() for block admin page templates.
- *
- * Uses an unordered list markup in both compact and extended mode.
  */
 function seven_preprocess_admin_block_content(&$variables) {
   if (!empty($variables['content'])) {
diff --git a/core/themes/seven/templates/admin-block-content.html.twig b/core/themes/seven/templates/admin-block-content.html.twig
index 175dc79..9b21252 100644
--- a/core/themes/seven/templates/admin-block-content.html.twig
+++ b/core/themes/seven/templates/admin-block-content.html.twig
@@ -3,6 +3,8 @@
  * @file
  * Seven's theme implementation for the content of an administrative block.
  *
+ * Uses unordered list markup in both compact and extended modes.
+ *
  * Available variables:
  * - content: List of administrative menu items. Each menu item contains:
  *   - url: Path to the admin section.
diff --git a/core/themes/seven/templates/custom-block-add-list.html.twig b/core/themes/seven/templates/custom-block-add-list.html.twig
index 02ba5cf..5d615dd 100644
--- a/core/themes/seven/templates/custom-block-add-list.html.twig
+++ b/core/themes/seven/templates/custom-block-add-list.html.twig
@@ -1,14 +1,13 @@
 {#
 /**
  * @file
- * Overrides custom-block-add-list.html.twig.
+ * Seven's theme implementation to display a list of custom block types.
  *
  * Displays the list of available custom block types for creation.
  *
  * Available variables:
  * - types: A collection of all the available custom block types.
  *   Each type contains:
- *   - type: The custom block type, containing all the items below.
  *   - url: A link to add a block of this type.
  *   - description: A description of this custom block type.
  *   - label: The title of the custom block type.
diff --git a/core/themes/seven/templates/tablesort-indicator.html.twig b/core/themes/seven/templates/tablesort-indicator.html.twig
index 8aa40fa..b2eadaa 100644
--- a/core/themes/seven/templates/tablesort-indicator.html.twig
+++ b/core/themes/seven/templates/tablesort-indicator.html.twig
@@ -1,11 +1,12 @@
 {#
 /**
  * @file
- * Default theme implementation for displaying a tablesort indicator.
+ * Seven's theme implementation for displaying a tablesort indicator.
  *
  * Available variables:
  * - style: Either 'asc' or 'desc', indicating the sorting direction.
- * - theme_path: Path to the theme.
+ * - arrow_asc: URL to the image for an ascending arrow.
+ * - arrow_desc: URL to the image for a descending arrow.
  */
 #}
 {% if style == 'asc' -%}