Fix
* fix(distrib): Distribution.plotPeak() legend background more transparent ([`4a148f1`](https://github.com/BAMresearch/jupyter-analysis-tools/commit/4a148f1d4ca4b0aa5335f8982c5f8348fb906e78))
Refactor
* refactor(notebook_utils): whitespace ([`30feb51`](https://github.com/BAMresearch/jupyter-analysis-tools/commit/30feb51175fa55c694cc88995a94e7ff26303b9b))