I thought it was fairly even, but maybe a little more GT fans than UGA's (Maybe 55/60 GT to 45/40 UGA). Pictures don't do the actual GT fan attendance justice because the red UGA "pops" more than most of the darker colors worn by GT fans.
Give UGA fans credit for being more color coordinated than GT fans. That's one thing we need to work on. White and Gold are very difficult cold weather colors. Not much available for those colors in terms of winter clothing...especially for men. For me, I had a navy blue quarter zip GT pullover, but had to wear my forest green Patagonia jacket over it because it was cold.
Dark colors just blend into the night on TV and if you aren't looking closely if you're there.