While the accents of the motherboard are red (and would need to be painted) Edit: accents still somewhat unclear, Asus seems to have taken Linus' needs into consideration:
Asus' next generation Z170 Maximus VIII motherboards (Hero confirmed, assuming models above as well) will feature lighting control for custom LED colors. It is advertised to be 6 different color profiles, although there is no word on fine tuned customization.
Based on what is seen in the video, this feature will be called SupremeFX. Edit: That actually is the audio solution's name, although that logo will have the same LEDs. This also means that the Maximus VIII Extreme will also have this feature (See below for images from the press release page). The Ranger and Gene might have the feature, but it isn't guaranteed (Hard to tell).