/* Custom size for Badgeos */
add_image_size('new-badgeos-achievement', 180, 180);
function badgeos_post_thumbnaile_size($size){
if($size == 'badgeos-achievement') return 'new-badgeos-achievement';
else return $size;
}
add_filter( 'post_thumbnail_size', 'badgeos_post_thumbnail_size', 10, 1);