@software{elio_campitelli_2022_6385112, author = {Elio Campitelli}, title = {{ggnewscale: Multiple Fill and Color Scales in ggplot2}}, month = mar, year = 2022, publisher = {Zenodo}, version = {v0.4.7}, doi = {10.5281/zenodo.6385112}, url = {https://doi.org/10.5281/zenodo.6385112} }