I'm creating a google map, with some custom markers on it. Each marker has a "heat" parameter, and I would like to design those markers depending on this parameter. But I can't figure the best way to do it.
Let's say if I have a marker with a score of 100, and another one of 30, I would like to show that the one with a score of 100 is hotter of course, but I don't know what is the best way. Coloring them with shades or red? And turning this red to yellow the less hot the marker is? Is this a good way?
I don't ask you to do the job for me, like the coding or whatever else, just to give me an idea of how a designer would solve this "heat" problem.