And WordPress themes is what this page is about! What are they? Glad you asked. We are talking about pre-designed and pre-built layouts that you can apply to your website. If the WordPress dashboard allows you to take care of the content of your site (categories, subcategories, sections, pages, text and so on) a theme will define what the site looks like. Its visual design and its interactions. What color will the background be? How will a link be highlighted when you hover with your mouse? Will it have a large slider in the homepage? That’s what a theme is about.