Package: ggtwotone 0.1.0

Beenu Sareena

ggtwotone: Dual-Tone and Contrast-Aware 'ggplot2' Geoms

Provides dual-stroke and contrast-aware extensions to 'ggplot2', designed for improved visibility and accessibility in complex visualizations. Includes geoms for dual-stroke segments, regression lines, curved annotations, function plots, paths, and adaptive text. Also includes utility functions for computing contrast-aware color pairs and perceptually distinct highlight palettes using WCAG-based contrast logic.

Authors:Beenu Sareena [aut, cre], Heike Hofmann [aut]

ggtwotone_0.1.0.tar.gz
ggtwotone_0.1.0.zip(r-4.7)ggtwotone_0.1.0.zip(r-4.6)ggtwotone_0.1.0.zip(r-4.5)
ggtwotone_0.1.0.tgz(r-4.6-any)ggtwotone_0.1.0.tgz(r-4.5-any)
ggtwotone_0.1.0.tar.gz(r-4.7-any)ggtwotone_0.1.0.tar.gz(r-4.6-any)
ggtwotone_0.1.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
ggtwotone/json (API)

# Install 'ggtwotone' in R:

install.packages('ggtwotone', repos = c('https://bwanniarachchige2.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/bwanniarachchige2/ggtwotone/issues

On CRAN:

5.32 score 3 stars 6 scripts 9 exports 30 dependencies

Last updated from:3f56364d29. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	169
source / vignettes	OK	205
linux-release-x86_64	OK	155
macos-release-arm64	OK	143
macos-oldrel-arm64	OK	159
windows-devel	OK	107
windows-release	OK	127
windows-oldrel	OK	118
wasm-release	OK	115

Exports:adjust_contrast_pair geom_curve_dual geom_function_dual geom_lm_dual geom_path_dual geom_segment_dual geom_text_contrast highlight_colors highlight_info

Dependencies:cli colorspace cpp11 dplyr farver generics ggplot2 glue gtable isoband labeling lifecycle magrittr pillar pkgconfig purrr R6 RColorBrewer rlang S7 scales stringi stringr tibble tidyr tidyselect utf8 vctrs viridisLite withr

Getting Started with ggtwotone

Rendered fromggtwotone.Rmdusingknitr::rmarkdown

Last update: 2026-07-01
Started: 2026-07-01

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Adjust Contrast Between Two Stroke Colors	adjust_contrast_pair
Dual-Stroke Curved Line Annotations	geom_curve_dual
Dual-Tone Curved Function Lines	geom_function_dual
Dual-Tone Regression Line with Contrast-Aware Strokes	geom_lm_dual
Draw dual-stroke paths with side-by-side colours	geom_path_dual
Dual-Stroke Line Segments with Side-by-Side Offset	geom_segment_dual
Contrast-Aware Text Geom	geom_text_contrast
Generate a high-contrast, well-separated highlight palette (global search)	highlight_colors
Inspect effective palette constraints	highlight_info