I wrote an appstream file for Steam. I added <project_license>LicenseRef-proprietary</project_license> but I'd like to point to the actual license too.

What do you think about adding a proprietary-license URL type? GNOME Software could then use that URL to override the default License Proprietary > More information popup link.

On the other hand, it doesn't have to be a URL if there was a way I could include the license text directly.