Issue #3340723: Wrong validation on Border Color

src/Plugin/Field/FieldWidget/EbtSettingsDefaultWidget.php

@@ -226,7 +226,6 @@ class EbtSettingsDefaultWidget extends WidgetBase {
       '#attributes' => [
         'placeholder' => $this->t('Select Color'),
       ],
-      '#element_validate' => [[$this, 'validateBoxElement']],
     ];
 
     $element['ebt_settings']['design_options']['other_settings']['border_style'] = [