Mine lights up red when hitting the brake. I dont have a pic of that, but here is a pic of the driving/license plate light on. You'll want to put a dimmer bulb for that lower section because it washes out the brake light above. I went with a lower wattage than the one shown.:
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I remember Gary (nice guy) talking about other styles of lenses.. and just did a websearch for you.. this is his website:
http://www.dreamweaversprostreet.com/upgrade.htm . I got it from dreamweavers on ebay for $80 shipped, but it looks to be more expensive now.
http://stores.ebay.com/Dream-Weavers-Custom-Taillights?_trksid=p4340.l2563Look in there.. Its actually glass, not plastic, and the quality is not bad - on par or better than the rest of the bike. It does look very period. People usually complement that part of the bike first.
I thought about doing the yellow too, but I didnt want to worry about the pohpoh.
However, the bulb it comes with is not bright, so buy a brighter one, and it still is not as bright as oem.