'is_contact' => 0,
'description' => ts('Color of the CiviCRM main menu.'),
'help_text' => NULL,
- 'validate_callback' => 'CRM_Utils_Rule::color',
+ 'validate_callback' => 'CRM_Utils_Color::normalize',
],
'requestableMimeTypes' => [
'group_name' => 'CiviCRM Preferences',