The current recommended setting for blog images is 600x400.

However with this settings the images are cut of when they are displayed inside a blog article.

How does this make sense?

Our article images are not displaying completely, so this recommendation doesn't make sense because I want all of my featured images to be displayed.

Also 600x400 is too small to display text well. I would recommend to increase this to 3x = 1800x1200 and scale down if needed, in a responsive way.

Anyways the ratios need to be kept stable to avoid cutting things off.

It would be nice to make a header image that can stretch across the top of the post