'', - value to save * 'label' => '', - label * 'preview' => '', - url of preview image * 'image' => '', - image to display * 'image2x' => '', - image for high DPA displays * 'anim' => '', - plays on preview hover * 'anim2x' => '', - animation for high DPA displays * ], * ... * ] * * @return array[] */ public function toOptionArray(): array; }