Problem
Zebra style map frame is a nice feature supported in many map applications including ArcGIS, ENVI/IDL, GMT.
http://www.idlcoyote.com/idldoc/cg/cgdrawshapes.html
https://gmt-tutorials.org/en/making_first_map.html

Proposed solution
Add a flag to turn on this feature if plotting a map with a map structure.

Additional context and prior art
https://stackoverflow.com/questions/57313303/how-to-plot-zebra-style-axis-in-matplotlib