Extended Tools for Continuous Legends, Polygon Manipulation, and Visual Display of Categorical Data R package PlotTools version 0.4.0 Annotate plots with legends for continuous variables and colour spectra using the base graphics plotting tools; and manipulate irregular polygons. Includes palettes for colour-blind viewers. Software Depends: R (>= 3.5) Suggests: knitr, rmarkdown, sp, spelling, testthat (>= 3.0.0), vdiffr (>= 1.0.0), Martin R. Smith <martin.smith@durham.ac.uk> Comprehensive R Archive Network (CRAN) Martin R. Smith [aut, cre, cph] (ORCID: <https://orcid.org/0000-0001-5660-1727>), Martin Krzywinski [ctb] (ORCID: <https://orcid.org/0009-0005-5785-3631>) GPL (>= 2) 2026-01-29 application/tgz https://CRAN.R-project.org/package=PlotTools doi:10.32614/CRAN.package.PlotTools en-GB