NEWS

ltc 0.4.0.9000

New ggplot2 scales, in the style of scale_fill_viridis(): scale_fill_ltc(), scale_colour_ltc() and scale_color_ltc(). Each takes a palette name, discrete = TRUE (the default) or FALSE for a continuous scale, and direction = -1 to reverse the palette. Plots no longer need scale_fill_manual(values = ltc(...)).
New ltc_pal() returns a palette function of n, for use with other scale constructors. It interpolates when asked for more colours than the palette holds, so a scale does not break on more groups than expected.
The all-palettes README figure is now a gallery of palette cards: one card per palette, every colour an equal tile carrying its hex code, grouped by how many colours the palette has. Drawn at twice the pixel density, and generated by data-raw/gallery/make_palette_cards.R straight from the palette definitions, so a new palette appears with no other edit.
ltc(), adjust_ltc(), custom_adjust_ltc() and desaturate_ltc() now accept a palette name supplied as a variable (e.g. pal <- "remains"; ltc(pal)), in addition to a quoted string and a bare name. The name-resolution logic is shared and covered by testthat tests.

New palette casa_natal, inspired by Casa Natal on the Plaza de la Merced, the birthplace of Picasso.
New function ltc_cvd() previews a palette under the three main types of colour-vision deficiency (deuteranopia, protanopia, tritanopia).

Added a pkgdown website with an interactive palette explorer (every palette across six chart types, with brightness and colour-vision controls).
Redesigned the all-palettes overview figure and added a gallery of example charts plus an animated palette showcase.
README now documents CRAN installation, the palette-adjustment functions, and the colour-vision check.

Added colorspace package dependency for color manipulation
New function: adjust_ltc() - Darken or lighten palette colors
New function: custom_adjust_ltc() - Apply custom adjustments to individual colors
New function: desaturate_ltc() - Desaturate palette colors
All color adjustments use perceptually uniform methods from colorspace