NEWS

cptcity 2026-07-20

38 Spider-Verse palettes — every dimension, hero, and villain: Heroes: spider_man, spider_miles_morales, spider_gwen, spider_noir, spider_2099, spider_ham, spider_peni, spider_punk, spider_pavitr, spider_scarlet, spider_superior, spider_symbiote, spider_byte, spider_1602. Villains: spider_spot, spider_green_goblin, spider_venom, spider_doc_ock, spider_kingpin, spider_vulture, spider_mysterio, spider_sandman, spider_lizard, spider_electro, spider_rhino, spider_carnage. Dimensions: spider_earth_1610 (Miles), spider_earth_65 (Gwen), spider_earth_90214 (Noir), spider_earth_928 (2099), spider_earth_50101 (Pavitr), spider_mumbattan, spider_nueva_york. Effects: spider_glitch, spider_multiverse, spider_web, spider_venom_symbiote, spider_silk.
Total palettes: 7464 (7140 original + 324 curated).
R >= 3.5.0 now required (serialized data format).
Passes R CMD check with zero errors, zero warnings, zero notes.

138 new palettes in 13 categories: Music (16), Anime (13), Cities (10), Mythology (8), Scientific (10), Brazil (11), Films (11), Gemstones (10), Weather (10), Comics (9), Food (10), Albums (10), Photography (10).
Total palettes: 7426 (7140 original + 286 curated).
Music: jazz, blues, metal, punk, hip-hop, bossa nova, samba...
Anime: Studio Ghibli, Evangelion, Cowboy Bebop, Dragon Ball...
Cities: Tokyo neon, Rio, Paris, Marrakesh, Havana, Berlin...
Brazil: Carnival, Amazon, Bossa Nova, Tropicalia, Niemeyer...
Films: Star Wars, Jurassic Park, Inception, Pulp Fiction...
Gems: Amethyst, Emerald, Ruby, Sapphire, Opal, Turquoise...
Weather: Hurricane, Rainbow, Blizzard, Lightning, Twilight...
Science: Thermal, X-Ray, DNA, MRI, Electromagnetic spectrum...
Mythology: Norse, Greek, Egyptian, Aztec, Celtic, Hindu...
Comics: Marvel, DC, Watchmen, Sin City, Hellboy, Tintin...
Food: Coffee, Wine, Sushi, Matcha, Chocolate, BBQ...
Albums: Dark Side of the Moon, Abbey Road, Nevermind...
Photography: Kodachrome, Tri-X, Portra, Polaroid, Lomography...

148 new colour palettes spanning 12 thematic categories: Art Movements (15), Architecture (12), Decades (18), Books (14), Cyberpunk (7), Space Agencies (14), Cinema (8), Video Games (18), TV & Era (8), Historical Eras (9), Nature (14), Miscellaneous (11).
Total palettes: 7288 (up from 7140).
Palette highlights: cyber_2077_night_city, space_nasa, game_street_fighter_ryu, nature_aurora_borealis, decade_1980s_synthwave, book_dune_arrakis, art_impressionism_monet, arch_fallingwater_wright, tv_stranger_things.
All new palettes prefixed by category (art_, arch_, decade_, etc.) for easy discovery with find_cpt().
Generation script at build_v2_palettes.R for reproducibility.

URL: cpt-city archive moved from soliton.vm.bytemark.co.uk to phillips.shef.ac.uk. All documentation updated.
cpt(): added error message for unknown palette names.
cpt(): improved documentation explaining colorRampPalette vs character-vector return — sf users need colorRampPalette = TRUE.
find_cpt(): now case-insensitive by default (ignore.case = TRUE). Added fixed argument for literal (non-regex) matching.
lucky(): deduplicated internal runif call. Guards against out-of-range index.
show_cpt(): moved on.exit(par(oldpar)) to top of function. Cleaner grid layout logic and better margins.
Tests: added tests for sf integration, find_cpt case sensitivity, frgb scaling, unknown palette error, and colorRampPalette return type.
Documentation: all .R files re-documented with comprehensive roxygen2 entries.

Incorporated 7140 colour gradients cpt-city_2.19-1 http://soliton.vm.bytemark.co.uk/pub/cpt-city/pkg/
Only two gradients were not incorporated: http://soliton.vm.bytemark.co.uk/pub/cpt-city/gmt/tn/GMT_cyclic.png.index.html http://soliton.vm.bytemark.co.uk/pub/cpt-city/jjg/hatch/tn/diag5.png.index.html
Added the function find_cpt.
Renamed the existing gradients to the new names, for instance, "inferno" is now "mpl_inferno".
Added a dataset with the names of the colour gradients.