There are 269 free WooCommerce themes on WordPress.org which is amazing. And many of them are absolutely gorgeous. And while many of them are gorgeous there is one aspect that developers leave out. And that is making sure that WooCommerce email styles match the theme. As a store owner you want to have a unified experience. Unfortunately in most cases no matter what colors your theme has your emails tend to look like this:
That won't work well if your theme is like my blog's theme: big header, a vibrant purple, and my face in the header. The emails don't resemble that at all.
Luckily there are two good solutions to this problem. The first is a plugin and the second, for savvy developers, is to use custom code.