Returns HTML for a summary of an image rotate effect.
$variables: An associative array containing:
function theme_image_rotate_summary($variables) {
$data = $variables['data'];
return $data['random'] ? t('random between -@degrees° and @degrees°', array(
'@degrees' => str_replace('-', '', $data['degrees']),
)) : t('@degrees°', array(
'@degrees' => $data['degrees'],
));
}