Catelite:
Heat gradient appears broken in the beta. I cannot see the gradients. In fact, it seems to be fancy display with a few graphics missing.Actually, this is exactly what heat gradient view is for. Just thought I'd throw that out there. XD
I was looking for a way to change the color palette too. Also for pressure. I was experimenting with a kind of spraycan design (but with heat --> pressure as driving force).
But I could not see the changes in pressure until they reach a value of 1.0 (minimum) where the pixels in pressure view start to turn red (sure I can check with the mouse pointer but this does not give me a good overview and I have to constantly check).
So it would be cool to have a slider like 'sensitivity' for the pressure (and temperature) colors, i.e. higher sensitivity shows slight changes in pressure (changes below pressure 1.0 or any other value that you chose) or temperature better than lower sensitivity (and back to default setting).
P.S.: For the math geeks ;-): a logarithmic scale for pressure/temperature-->color would probably be an idea too.