Floodlight camera snapshot capture and color night vision interaction

I installed my first floodlight cam yesterday. I have both color night vision and snapshot capture options turned on. When it's dark, do the lights turn on for each snapshot because color night vision is on? When I scanned through the snapshots this morning, the lights were on in each snapshot. If that is what's happening are the lights flashing on an off all night or are the lights on continuously? I have the light schedule off, and no motion was detected for most of the night.