Note: these are old photos from 2010 I believe. Car looks slightly different now, with larger Subaru emblem from 2010+ Legacy, and a larger white LED back-light.
LED emblems are making their way to the mainstream, with Mercedes-Benz offering an illumated star – and many more on the way from Infiniti and others.
There are certain sizes for the rear emblems too: and these are pretty snazzy. They come on with the lights and are just a white or blue glow for the badge. But them when you hit the brakes: the emblem goes red too.