I honestly don’t know how tall I am. I know I’m taller than last time I was seriously measured, but I don’t know by how much and I don’t care. But everyone shrinks during the day anyway. Measuring height to precise centimeters has just a little more sense than weighing someone with precision of ⅒ of kilogram. I have basically no chance but to estimate and possibly round.

Cviridis or whatever they used here? Cviridis (and other scales constructed with the same philosophy) does.

There are colour scales that combine colours and intensities consistently, so that if you discard (or can’t percieve) colour information, you still get a nice black to white scale. For a moment, I though the map used cviridis scale, which has this property and is designed to look as similar as possible to people with various variants of colour blindness. But then I realised that the scale used here has the brightest point in the middle, not on one side.