feat: expand color system to 53 colors/10 palettes, add grid/slide themes, and README gallery

Replace the 16-color / 3-palette system with the full Civilytics design system: 53 named colors (full navy, ember, violet ramps plus teal, plum, moss, brass supporting hues) and 10 visualization palettes (qual, qual_warm, qual_cool, seq_ember, seq_navy, seq_violet, seq_paper_ink, div_navy_ember, div_violet_ember). Enrich theme_civilytics() with grid and paper_bg parameters, add theme_civilytics_slide() for presentations, and load all four brand fonts (Inter, Libre Franklin, Source Serif 4, JetBrains Mono). Add README.Rmd with rendered gallery showing all palettes, theme variants, grid options, dark/slide modes, facets, and scale usage.
2026-05-19 10:35:32 -06:00
parent 099fff1d1d
commit 515bae8685
29 changed files with 1209 additions and 273 deletions
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+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/colors.R
+\docType{data}
+\name{civilytics_palettes}
+\alias{civilytics_palettes}
+\title{Civilytics visualization palettes}
+\format{
+A named list of character vectors of hex color codes.
+}
+\usage{
+civilytics_palettes
+}
+\description{
+Named list of curated color palettes for data visualization. Qualitative
+palettes use distinct hues for categorical data; sequential palettes ramp
+through a single hue for ordered data; diverging palettes fan out from a
+neutral midpoint.
+}
+\section{Qualitative (categorical data)}{
+
+\describe{
+  \item{`qual`}{7 distinct hues: navy, ember, plum, violet, red, teal, ink-3}
+  \item{`qual_warm`}{Warm-leaning: ember, red, magenta, plum, violet}
+  \item{`qual_cool`}{Cool-leaning: navy, violet, plum, teal}
+}
+}
+
+\section{Sequential (ordered/continuous data)}{
+
+\describe{
+  \item{`seq_ember`}{Light to dark ember (9 stops)}
+  \item{`seq_navy`}{Light to dark navy (9 stops)}
+  \item{`seq_violet`}{Light to dark violet (9 stops)}
+  \item{`seq_paper_ink`}{Paper through ember/plum to ink (8 stops, good for heatmaps)}
+}
+}
+
+\section{Diverging (data with a meaningful midpoint)}{
+
+\describe{
+  \item{`div_navy_ember`}{Navy <-> paper <-> ember (9 stops)}
+  \item{`div_violet_ember`}{Violet <-> paper <-> ember (9 stops)}
+}
+}
+
+\examples{
+names(civilytics_palettes)
+civilytics_palettes[["qual"]]
+}
+\keyword{datasets}