I agreed with your point, I partially disagreed with your proposition - simple as that.
Starting throwing in different colors could be problematic. That’s all I said.
Of course it should be visualized with the dot, that’s the whole purpose of it.
Your proposed dual state is most likely the perfect fit.
Tbh, I would care much less about all this stuff, but unfortunately, it’s not possible to tweak things according to my own requirements.