Looking at Fluent UI VS featured-themes, I don't see a difference.
I'll ignore Apple because: 1) It loads _extremely_ slowly (10+ seconds). 2) Just looks like a dark theme and nothing more.
I'll ignore Apple because: 1) It loads _extremely_ slowly (10+ seconds). 2) Just looks like a dark theme and nothing more.
The featured themes, in general, have poor typography and whitespace, poor formatting and alignment, and uninspired colors and design. Furo [0] is the best-designed of them and would make a solid foundation for a proper theme.