I was looking for a nice theme that easily showed the tabs as it used to before the browser update. I think this looks really good. This theme reminded me of the original look (at least nicer to look at than where your tabs all blend together.) This will most likely be my go-to theme because it's nice on the eyes. I've also noticed some other themes make the text of your tabs and bookmarks bar a bit blurred or not as easy to read. This one is very clear.
Edit: I did notice it's hard to see the + for the tabs at the top. If you could make it a bit lighter or white, that would be perfect. Thanks!

This doesn't look like the old browser, it just makes the tab bar blue. Still has the same garbage tabs and you still can't see the difference.

Don't bother with this, it's not worth it.