5.3 Tips and tricks | An Introduction to R
R visualization workshop
Create your own discrete scale — scale_manual • ggplot2
scale_colour_manual does not drop unused levels. - tidyverse - RStudio Community
scale_manual
Issue with scale_color_manual · Issue #4616 · tidyverse/ggplot2 · GitHub
r - Fill and border colour in geom_point (scale_colour_manual) in ggplot - Stack Overflow
How to Assign Colors by Factor in ggplot2 (With Examples)
Introducing artyfarty: a theming package for ggplot2 | R-bloggers
Combining scale_fill_manual and scale_colour_manual /ggprotos - tidyverse - RStudio Community
Lab 9: ggplot2 extension packages for visualization
ggplot2 - R: how can I use a variable to define scale_colour_manual and key label colours? - Stack Overflow
r - Colouring variables using scale_colour_manual in ggplot2 - Stack Overflow
/colorblind_palette.jpg "Colors (ggplot2)")
Colors (ggplot2)
GGPlot Colors Best Tricks You Will Love - Datanovia
ggplot - scale_colour_manual() : r/RStudio
grafify: Colour palettes
15 Scales and guides | ggplot2
R visualization workshop
scale_colour_manual does not drop unused levels. - tidyverse - RStudio Community
5.3 Tips and tricks | An Introduction to R
第26 章ggplot2之扩展内容| 数据科学中的R 语言
scale_colour_manual(palette=foo): cannot coerce type 'closure' to vector of type 'character' · Issue #3182 · tidyverse/ggplot2 · GitHub
How to expand color palette with ggplot and RColorBrewer – R-Craft
RPubs - colours in R
A Grammar of Animated Graphics • gganimate
