@aklapper has pointed me to this task at the Wikimedia Hackathon days ago. At the https://phabricator.wikimedia.org/tag/oojs-ui/ we're dealing with the situation that milestones have been put (I don't know if the exact reason was human or program activity) into wrong order. If you show past, hidden milestone columns visible, you'll see that our releases v0.16.2–0.17.3 are before v0.7.0 which is misleading when going through historic milestones.
Would be happy to see reordering possible as well…

Great, thanks! (And with clarity I meant instant visual clarity for people who haven't been involved in designing them)

@chad Do I understand you correctly, there would be just outright white background for transparent areas with your patch?
The checker background gives clarity as we have to make sure that many of our interface elements shown in Pholio mocks are working on dark and white backgrounds.