The Red track is for technical talks telling us about new attack vectors or tricks learned while pentesting or during research. We all love a good attack talk and to hear about the latest things, but we have a challenge to all Red Team talks, include at least one slide telling the defense side about signatures for the attack, defense mechanisms to protect against it or how you could have been caught.
The Blue track is for talks about defense. We all know attacks are sexy but many of us are on the defensive side. This track is to tell us about Defensive tactics, how a program was built with duct tape and bubble gum or other stories from the defensive trenches.
The Green track is geared toward newcomers to the Infosec industry and professional growth.