>>4449591
It's not very common on websites. Off the top of my head, I can't remember a single static site generator or rentry alternative that has an outlined text option in the editor. Although to be fair, I also can't remember a single static site generator or retry alternative (other than rentry itself) that has extra thick underlines. Graphics software is a different beast altogether.

Rentry allows you to add a drop shadow to text in the metadata, but you can't specify which text it's going to be applied to, and it still doesn't help readability that much.