These are three default themes in a new WordPress 5.0 installation. Twenty Nineteen is the newest and has been developed take advantage of the new features that the Gutenberg editor brings to WordPress.
Twenty Nineteen has a simple, yet elegant feel. There is a real emphasis on typography. This first image shows a static page with a featured image. The featured image is maximized to cover the full page and a filter (blue) is applied over the top.
Page down and this is what the rest of the page will look like.
This is a static page on the Twenty Seventeen theme with a featured image. The featured image will be full screen on the home page and then is used more as a website banner, for the rest of the site.
This is a Twenty Nineteen static page. The typography really stands out. The theme has better support for all the new features that the Gutenberg editor offers.
This is a similar page with the Twenty Seventeen theme. The typography is really clear, although it’s not quite as clear as the Twenty Nineteen theme. Graphically though the Twenty Seventeen theme delivers a better impact.