'image-480', 'image-640' => 'image-640', 'image-720' => 'image-720', 'image-960' => 'image-960', 'image-1168' => 'image-1168', 'image-1440' => 'image-1440', 'image-1920' => 'image-1920', ) ); } add_filter( 'image_size_names_choose', 'my_custom_sizes' );