I don't know if this has been suggested before (almost certainly) but I think it's just a good idea I had that I'd like to air.
Pressure view is perfectly good but pressure within elements (solids especially) is very difficult to get an idea of due to being only displayed when you move the mouse over it.
It could be practically the same as heat view with ambient heat. It would be helpful for example when using GOO or BMTL. That's possibly the only use but in my opinion it would be very helpful.
Could be activated like Life Gradient View, with Shift+2.
Possibly a third colour could be added, purple probably, for solids so that ones with a pressure near 0 wouldn't be invisible.
Any thoughts?
You know that you can already do this.. the function has been there a long time. There is a view display menu in the bottom right, just turn off everything except for 'Air:Pressure'.
The 1-9 keys are only shortcuts to disable/enable certain options, you can manually set options yourself for more advanced displays.