diff --git a/_images/components/var_dumper/10-light-theme.png b/_images/components/var_dumper/10-light-theme.png
new file mode 100644
index 00000000000..3723925c2cb
Binary files /dev/null and b/_images/components/var_dumper/10-light-theme.png differ
diff --git a/components/var_dumper.rst b/components/var_dumper.rst
index 3b3a67b865b..2f1fe1dd863 100644
--- a/components/var_dumper.rst
+++ b/components/var_dumper.rst
@@ -412,6 +412,49 @@ then its dump representation::
 
 .. image:: /_images/components/var_dumper/09-cut.png
 
+Changing the output color of HtmlDumper
+----------------------------------------
+
+The :class:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper` class added a new :method:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper::setTheme` method. Now you can use both ``'dark'`` and ``'light'`` options.
+
+Example::
+
+    require __DIR__.'/vendor/autoload.php';
+
+    use Symfony\Component\VarDumper\VarDumper;
+    use Symfony\Component\VarDumper\Dumper\HtmlDumper;
+    use Symfony\Component\VarDumper\Cloner\VarCloner;
+
+    $varDumper = new VarDumper();
+    $varDumper::setHandler();
+
+    $cloner = new VarCloner();
+
+    $htmlDumper = new HtmlDumper();
+    $htmlDumper->setTheme('light');
+
+    VarDumper::setHandler(function ($var) use ($cloner, $htmlDumper) {
+        $htmlDumper->dump($cloner->cloneVar($var));
+    });
+
+    $data = [
+        'Now',
+        'this',
+        'should be',
+        'lighter!',
+    ];
+
+    dump($data);
+
+.. image:: /_images/components/var_dumper/10-light-theme.png
+
+.. versionadded:: 4.2
+    The :method:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper::setTheme` method was introduced in Symfony 4.2.
+
+.. note::
+    The :method:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper::setTheme` method only works with the :class:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper` class.
+
+
 Learn More
 ----------