Post Format

aside – Typically styled without a title. Similar to a Facebook note update.
gallery – A gallery of images. Post will likely contain a gallery shortcode and will have image attachments.
status – A short status update, similar to a Twitter status update.

原来这两年我有意无意的误用了 WordPress 的 Format，但旧的文章也不再改了，所有的过去都应该保留它本来的相。
官方文档