diff --git a/config/options.php b/config/options.php
index 3888030..60985ee 100644
--- a/config/options.php
+++ b/config/options.php
@@ -24,4 +24,7 @@
     'komment-icon-mention' => '♻️',
     'komment-icon-verified' => '✅',
     'replyClassNames' => '',
+    'form.submit.classNames' => 'button button-tiny button-primary',
+    'form.twitter.classNames' => '',
+    'form.mastodon.classNames' => '',
 ];