[sangd]

I really disagree with your top 3 problems, the rest is still not very convincing.

1. Nested tabs -> it's a better way to organize when you have too much content that should be grouped under the same tab. Nested tabs are found in lost of well-organized designs. I am a programmer and I do like hierarchies. I am uncertain about your statement of people normally don't like hierarchies. Maybe nested tabs don't suit your design, but I don't think it's a problem.

2. Redundant icons -> Of course when you stack them in the "intended images" with lack of spacing like that, they would cloud our views and harder to see. If you lay them out with good spacing, horizontally, they're much nicer to see. If you're using it often enough, you would remember the icons. I think you should keep the icons, push the non-regular items to a more option icon like ellipsis.

3. "Vanity counters" -> they're designed with different purposes. Out of the 3, I only care about Star and Fork. They're very good metrics and also good pride badges for public repos.

I do see there're good improvements compared to the old design like the file list, getting rid off the redundant commit description next to it, the stats.