[ExI] Optical illusion tricks you into seeing different colors

[BillK]

These levitating spheres may appear red, purple or green at first
glance, but in actuality, all 12 orbs are the same bland shade of
beige.

<https://www.livescience.com/confetti-munker-white-optical-illusion.html>

If you see 'red' when it's not red in reality, does this mean that
the red qualia is just an artefact created by the brain?

If so, then every brain probably creates a slightly different 'red'
qualia, sometimes even when not seeing a red object.

BillK