$o .= replace_macros($t, array(
'$submit' => t('Submit'),
'$baseurl' => $a->get_baseurl(),
'$title' => t("Theme settings"),
'$resize' => array('cleanzero_resize',t ('Set resize level for images in posts and comments (width and height)'),$resize,'',$resizes),
'$font_size' => array('cleanzero_font_size', t('Set font-size for posts and comments'), $font_size, '', $font_sizes),
$o .= replace_macros($t, array(
'$submit' => t('Submit'),
'$baseurl' => $a->get_baseurl(),
'$title' => t("Theme settings"),
'$resize' => array('cleanzero_resize',t ('Set resize level for images in posts and comments (width and height)'),$resize,'',$resizes),
'$font_size' => array('cleanzero_font_size', t('Set font-size for posts and comments'), $font_size, '', $font_sizes),