The Internet has a love-hate relationship with images. The good stuff: they’re beautiful, engaging, and can liven up any post or page by supplementing your content. The bad bits: they’re big, bloated, and slow down your web page (especially on mobile devices). While no perfect solution exists (although many are being proposed and worked on), X does most of the dirty work for you so that you don’t have to worry about this as much. Simply select your layout and how wide you want your content area to be in the Customizer, and X takes care of the rest! X will compute the size of your content area and create perfectly proportioned thumbnails specifically tailored around your options. As web technologies improve, you can rest assured that X will always be using the latest and greatest that is out there to ensure that you and your visitors receive the best (and snappiest) experience on the Internet.