Upgrade to 4.0.2

kirby/src/Cms/FileModifications.php

@@ -176,7 +176,11 @@ trait FileModifications
 
 		// fallback to content file options
 		if (($options['crop'] ?? false) === true) {
-			$options['crop'] = $this->focus()->value() ?? 'center';
+			if ($this instanceof ModelWithContent === true) {
+				$options['crop'] = $this->focus()->value() ?? 'center';
+			} else {
+				$options['crop'] = 'center';
+			}
 		}
 
 		// fallback to global config options

kirby/src/Panel/Field.php

@@ -9,6 +9,7 @@ use Kirby\Cms\Page;
 use Kirby\Form\Form;
 use Kirby\Http\Router;
 use Kirby\Toolkit\I18n;
+use Kirby\Toolkit\Str;
 
 /**
  * Provides common field prop definitions
@@ -222,6 +223,7 @@ class Field
 		return array_merge([
 			'label' => I18n::translate('slug'),
 			'type'  => 'slug',
+			'allow' => Str::$defaults['slug']['allowed']
 		], $props);
 	}