Experimental extra plot to show class separation

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 59.73%. Comparing base (fcd161a) to head (bd1d04c). Report is 2 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #239 +/- ## ======================================= Coverage 59.73% 59.73% ======================================= Files 29 29 Lines 3807 3807 ======================================= Hits 2274 2274 Misses 1533 1533 ```

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