Option for static color ramp values on temperatures in autoplots 192, 206?

[hluker]

Right now, when creating auto-plots involving temperatures in 192 and 206, it seems to dynamically create values used for the side color ramp. Is there a way to make this more static, i.e. more like what is here https://mesonet.agron.iastate.edu/data/iowa_tmpf.png?

[akrherz]

Thanks for filing this. I don't have an immediate means to implement this, but agree it should be done.