first version

kirby/config/fields/select.php

@@ -0,0 +1,18 @@
+<?php
+
+return [
+    'extends' => 'radio',
+    'props' => [
+        /**
+         * Unset inherited props
+         */
+        'columns' => null,
+
+        /**
+         * Custom icon to replace the arrow down.
+         */
+        'icon' => function (string $icon = null) {
+            return $icon;
+        },
+    ]
+];