To be fair, this one is specially to address the issue of a distro theming an app, breaking it, and that leading to a bug report at the upstream even though it's the distro at fault.

If a user is willing to take responsibility for breakage and such, then I'm not sure the devs are against theming as such.

> If you like to tinker with your own system, that’s fine with us. However, if you change things like stylesheets and icons, you should be aware that you’re in unsupported territory. Any issues you encounter should be reported to the theme developer, not the app developer.