ggsci 4.0.0

New features

• Add the Primer design system (from GitHub) palette in scale_color_primer() and scale_fill_primer() (#62, #63).
• Add the Atlassian Design System palette in scale_color_atlassian() and scale_fill_atlassian() (#64).
• Add 400+ iTerm palettes in scale_color_iterm() and scale_fill_iterm() (#67).

Improvements

• Add example_scatterplot() and example_barplot() to simplify discrete scale examples in documentation. This reduces boilerplate code and makes it easier to maintain the examples. Also improves graphical appearance of the examples by using a minimalist theme with alternative data subsets (#61).

Maintenance

• Refactor the logo generation script from an R script to a shell script and move it into tools/ (#66).
• Use standard static imports workflow (#58).