Use matplotlib's jet for ROIs
Use matplotlib's jet for ROIs

Instead of allowing matplotlib to use its default coloring scheme, which
changes to viridis in matplotlib 2, explicitly specify jet. The latter
was used on matplotlib 1 and makes it easy to distinguish many ROIs. So
this merely guarantees the same behavior with matplotlib 2.

DudLab/nanshe_workflow,nanshe-org/nanshe_workflow