New image size between medium and large, or ability to add custom image sizes

[meganlavengood]

Feature Description

It's convenient having default image sizes in Pressbooks to ensure consistency across the site, etc., but there's a big jump between medium size (max-width 300px) and large (max-width 1024px). A medium-large size of perhaps 600 would be useful.

Feature Use Case

Images that should be large, but not full-width.

Other Notes

Of course I know we can use custom sizes, but for consistency and ease of use, I'd like to be able to have this as a preset.

[SteelWagstaff]

Thanks for filing this @meganlavengood -- it's a good idea! Can you share with us a little bit more about your desired use case? Are you thinking primarily of usefulness for the webbook, PDF exports, or both?

[meganlavengood]

both but primarily webbook.