For those who would perhaps like to check out what I concocted: https://github.com/ltGuillaume/FeedMei
Not enough contrast. Greys are stylish but hard on the eyes.
Yes, you’ve got a point there. I’ve increased the contrast a bit already, but since I want the focus to be completely on the articles (I rarely look at the feed tree anyway), the toolbar and feed tree will keep that lower contrast.