/usr/lib/R/site-library/viridisLite/INDEX is in r-cran-viridislite 0.3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | viridis Matplotlib 'viridis' and 'cividis' color map
viridis.map Original 'viridis'and 'cividis' color map
|