I am trying to get some images of the electrostatic potential surface of my complex. But I have noticed that by using the same .dx file in chimera and vmd, I am getting different coloring results. Chimera gives more negatively charged areas. I used the -5 0 5 coloring for both. Is it a difference in reading the .dx files between the 2 software? I also think that Chimera colors each side chain by the avg charge. Is it possible to have a more detailed coloring of the surface according the charges?