Discrete colorbar for plot_pixels function

[nevencaplar]

plot_pixels function that creates plot such as

should have discrete colorbar, as the values are always integers.

[delucchi-cmu]

That's a totally reasonable request. However.

This is fully generated within the healpy.mollview visualization method. We don't have a ton of control over how the color bar is rendered. Also, with increased scrutiny around #53, we may have to re-implement our sky plotting.

[nevencaplar]

It this the function https://healpy.readthedocs.io/en/latest/generated/healpy.visufunc.mollview.html that you are referencing?If yes, it seems that we can pass an argument to it that would specify a discreet colormap (cmap argument)