The open beta for Issue 16: Power Spectrum is under way, so jump onto the North American Training Room Test Server if you'd like to see what it's like to customize the colors of your powers. If you don't know how to access the test server, here's the instructions.

Once you've tried out Issue 16, you can talk about it with fellow testers in the official feedback, bugs and chatter and discussion forums. You can also check out our gallery for screenshots of the color customization options in action.