Diana has a matte finish. In the gunmetal grey that Kymco calls "Silver" (hint: it isn't, it's too dark) it looks really good. To me, at least. I'm the one that has to ride her. The thing I don't like is black bikes. Black is the most difficult color to see, and that means increased chances of being hit. I've never understood this fascination with black everything on motorcycles.
If I had my way, Diana would be painted like a McLaren Formula 1 car...
Those things aren't by any means the best cars on the circuit, what with Alonso and Vandoorne running ninth in the Constructors, but by god, that's a damned visible car. And the blue accents are great!