I found a pair of Flak 2.0 on eBay that's listed as a Gunmetal frame. The frame appears to be sparkly. I can find no reference to this frame material anywhere. It's not a custom frame option on Oakley.com, either. OAKLEY FLAK 2.0 XL SUNGLASSES GUNMETAL Does anyone know what this is? In person does it look like Elton John's sunglasses, or is it more subtle like a mix between polished and matte?