I recently moved my plants next to my adult (6-year-old) beardie's enclosure to overwinter them. I use purple LED lights that are on the same timer as the heat lamp, CHE. I have noticed he has started trying to bask on the side of the enclosure next to where the plants and purple lights are, which is on the cool side of the tank. He still warms up under his MVB in the morning, but spends most of the day on a rock staring at the purple lights.
I'm planning on moving the plants to a new location but I was curious if there is something in the purple LED lights that would make him try to bask under them.
Wont be the UV from them as your glass tank walls will be blocking all the UV.
Move them to the otherside of his tank and see if he basks close to them then, more likely just coincidence or maybe he's seeing the colours created in the follage by reemitted visible light.