Ggplot update review

[pbulsink]

Closing #292

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.88%. Comparing base (9ff24fc) to head (ad3828b).
⚠️ Report is 11 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #293      +/-   ##
==========================================
- Coverage   94.33%   92.88%   -1.46%     
==========================================
  Files          20       20              
  Lines         971     1082     +111     
==========================================
+ Hits          916     1005      +89     
- Misses         55       77      +22     

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