if you have Discord’s premium Nitro subscription, you can add a banner image to your profile. Discord says it added these custom profiles on June 24th. I first noticed the change on Wednesday, ...

If you're starting a YouTube channel, adding a banner is an important part of setting it up. After all, it's the first image that people ... device you're using — like Mac, Windows, or iPhone ...

This is nothing but the hero image. Wikipedia defines it as "a large banner image ... should also be optimised for different screen sizes like mobile and tablet besides desktops.