Better documents and monospace defaults fonts
We don't provide any guidance/defaults on which default documents and monospace fonts distributions should ship. This results in many distros shipping DejaVu Sans/Mono (probably due to this), which is not very good-looking. It may have been the best option 20 years ago, but over the past decade, a lot of nice new libre fonts have been released, some of which would probably better options.
I propose we actually recommend specific fonts here, just like we do with Cantarell for UI.
I'm not sure which fonts we could even recommend, because I don't know what styles/weights/features/charsets a font needs to support in order to be eligible as the default documents font.
I suppose Google's Noto family of fonts could be an interesting candidate, as it supports many styles and languages, but It would be good to know what other options we have.