diff --git a/core/modules/ckeditor5/ckeditor5.ckeditor5.yml b/core/modules/ckeditor5/ckeditor5.ckeditor5.yml
index 929992e498e27d9c4d0336587444202211eb8bfc..45c96eaf0da46566e6e0bb60ed0a97b48f5e3c12 100644
--- a/core/modules/ckeditor5/ckeditor5.ckeditor5.yml
+++ b/core/modules/ckeditor5/ckeditor5.ckeditor5.yml
@@ -500,6 +500,45 @@ ckeditor5_table:
       - <tfoot>
       - <caption>
 
+ckeditor5_table_properties:
+  ckeditor5:
+    plugins:
+      - table.TableProperties
+    config:
+      table:
+        contentToolbar: [tableProperties]
+  drupal:
+    label: Table properties
+    library: ckeditor5/internal.drupal.ckeditor5.table
+    conditions:
+      plugins:
+        - ckeditor5_table
+        # When arbitrary HTML is already allowed, it's harmless to enable CKEditor 5's UI for table properties.
+        - ckeditor5_arbitraryHtmlSupport
+    elements:
+      - <table style>
+
+ckeditor5_table_cell_properties:
+  ckeditor5:
+    plugins:
+      - table.TableCellProperties
+    config:
+      table:
+        contentToolbar: [tableCellProperties]
+  drupal:
+    label: Table cell properties
+    library: ckeditor5/internal.drupal.ckeditor5.table
+    conditions:
+      plugins:
+        - ckeditor5_table
+        # When arbitrary HTML is already allowed, it's harmless to enable CKEditor 5's UI for table cell properties.
+        - ckeditor5_arbitraryHtmlSupport
+    elements:
+      - <td style>
+      - <td rowspan colspan style>
+      - <th style>
+      - <th rowspan colspan style>
+
 ckeditor5_image:
   ckeditor5:
     plugins:
diff --git a/core/modules/ckeditor5/ckeditor5.libraries.yml b/core/modules/ckeditor5/ckeditor5.libraries.yml
index c08109e42b17f29e519d324e8da615d6a7286c20..5d71066f43705b0f86962ff6bcafcc49a41864f6 100644
--- a/core/modules/ckeditor5/ckeditor5.libraries.yml
+++ b/core/modules/ckeditor5/ckeditor5.libraries.yml
@@ -100,6 +100,13 @@ internal.drupal.ckeditor5.filter.admin:
     - core/drupal.ajax
     - core/drupalSettings
 
+internal.drupal.ckeditor5.table:
+  css:
+    theme:
+      css/table.css: { }
+  dependencies:
+    - core/ckeditor5.table
+
 internal.admin:
   js:
     js/ckeditor5.admin.js: { }
diff --git a/core/modules/ckeditor5/css/table.css b/core/modules/ckeditor5/css/table.css
new file mode 100644
index 0000000000000000000000000000000000000000..47b7e377afd82e3726ad92c257e0a9e96c3a4084
--- /dev/null
+++ b/core/modules/ckeditor5/css/table.css
@@ -0,0 +1,11 @@
+/**
+ * Allow users to specify the background color in all themes.
+ *
+ * (Users can set this using CKEditor 5's optional TableProperties and
+ * TableCellProperties plugins.)
+ */
+.ck tr,
+.ck th,
+.ck td {
+  background-color: transparent;
+}