If you've ever wondered why people say tools like Scribus aren't ready for professional production work let me share this blog post by @davidrevoy
This should be a slam dunk. David knows what he's doing and One Bookshelf provides instructions that clearly show how to produce a PDF to their specifications.
We need to do better, folks. Color Profiles that work for everyone except FOSS tools are unacceptable. Period. There are no excuses for this.
@craigmaloney @davidrevoy the comments are starting to be pretty interesting though, along the line of "If you were wondering why Scribus is a better pick than commercial stuff just look how quickly free software heals itself." 🙂