Shimano GRX 2x11 brake rotor compatibility I am looking for possible disc rotors for the GRX 2x11 that comes with the GRX BR-RX810 brakes but can just find one recommendation which are the Shimano Ultegra SM-RT800 Center Lock Ice-Tech, that I find very ugly. 
Even on the Shimano page I cannot find anything else. Are there any other rotors that are compatible with the GRX BR-RX810 and GRX2x11?
In all honesty, you can use any disc you like, and from practically any manufacturer as long as the dia. (and fitment type) is the same.