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Graphics-Toolkit-Color-2.20

Changes for version 2.20 - 2026-06-20

  • = big feature release: +3 spaces, +8 methods, +7 args, new docs, error handling
  • * add methods lighten / darken, saturate / desaturate,
  • * add methods tint (white) / shade (black) / tone (grey)
  • * new 16 Page doc in GTC::Manual with Reference, Topics, CookBook, CheatSheet
  • + spaces: 'OKHSL', 'OKHSV', 'OKHWB'
  • + color space property: 'family', 'role'
  • + method 'analogous' with args: 'to', 'in', 'steps' and 'tilt'
  • + method alias 'tone_curve' for 'apply'
  • + argument 'in' to method 'complement' (selectable cylindrical space)
  • + argument 'in' to method 'new' disambiguate color spaces
  • + argument 'skew' to method 'complement' (move circle along color-target axis)
  • + argument 'by' as alias of 'amount' argument for 'mix'
  • + reestablish optional Carp error messages + 4 other modes
  • + format: 'nested_array'
  • ~ change default color space for most methods to 'OKLAB' or 'OKHSL'
  • ~ change name and name alias in 'YUV' space now 'YPbPr' space
  • ~ change default argument of 'invert' from 'in' to 'only'
  • ~ rename method 'apply' to 'tone_curve', keeping 'apply' as alias til 3.0
  • ~ amount argument has now 0 .. 1 range, instead of 0 .. 100
  • ~ reduce arguments of the 'color' routine to work like the 'color' argument of 'new'
  • - reduce arguments of 'is_in_gamut' to 1 ('in') in method mode and 1 as routine ('color')
  • ! HSB constraints removal was mistake, constraint was reestablished

Documentation

Graphics::Toolkit::Color::Manual
GTC documentation hub
Graphics::Toolkit::Color::Manual::Argument
shape, content and meaning of recurring method arguments
Graphics::Toolkit::Color::Manual::Calculation
reference of single color calculation methods
Graphics::Toolkit::Color::Manual::CheatSheet
GTC keywords at a glance
Graphics::Toolkit::Color::Manual::Constructor
GTC object creation reference
Graphics::Toolkit::Color::Manual::Cookbook
examples that solve practical issues
Graphics::Toolkit::Color::Manual::Deprecation
deprecated API parts
Graphics::Toolkit::Color::Manual::Error
GTC error handling
Graphics::Toolkit::Color::Manual::Format
shapes of acceptable color definitions
Graphics::Toolkit::Color::Manual::Getter
reference of value access or value calculating methods
Graphics::Toolkit::Color::Manual::Name
GTC color name handling
Graphics::Toolkit::Color::Manual::Philosophy
GTC design principles
Graphics::Toolkit::Color::Manual::Plugin
how to extend GTC
Graphics::Toolkit::Color::Manual::Set
reference of color set creation methods
Graphics::Toolkit::Color::Manual::Space
details about supported color spaces

Modules

Graphics::Toolkit::Color
calculate color (sets), IO many spaces and formats
Graphics::Toolkit::Color::Name::Constant
store of color constants

Provides

Graphics::Toolkit::Color::Calculator
in lib/Graphics/Toolkit/Color/Calculator.pm
Graphics::Toolkit::Color::Error
in lib/Graphics/Toolkit/Color/Error.pm
Graphics::Toolkit::Color::Name
in lib/Graphics/Toolkit/Color/Name.pm
Graphics::Toolkit::Color::Name::Scheme
in lib/Graphics/Toolkit/Color/Name/Scheme.pm
Graphics::Toolkit::Color::SetCalculator
in lib/Graphics/Toolkit/Color/SetCalculator.pm
Graphics::Toolkit::Color::Space
in lib/Graphics/Toolkit/Color/Space.pm
Graphics::Toolkit::Color::Space::Basis
in lib/Graphics/Toolkit/Color/Space/Basis.pm
Graphics::Toolkit::Color::Space::Format
in lib/Graphics/Toolkit/Color/Space/Format.pm
Graphics::Toolkit::Color::Space::Hub
in lib/Graphics/Toolkit/Color/Space/Hub.pm
Graphics::Toolkit::Color::Space::Instance::AdobeRGB
in lib/Graphics/Toolkit/Color/Space/Instance/AdobeRGB.pm
Graphics::Toolkit::Color::Space::Instance::AppleRGB
in lib/Graphics/Toolkit/Color/Space/Instance/AppleRGB.pm
Graphics::Toolkit::Color::Space::Instance::CIELAB
in lib/Graphics/Toolkit/Color/Space/Instance/CIELAB.pm
Graphics::Toolkit::Color::Space::Instance::CIELCHab
in lib/Graphics/Toolkit/Color/Space/Instance/CIELCHab.pm
Graphics::Toolkit::Color::Space::Instance::CIELCHuv
in lib/Graphics/Toolkit/Color/Space/Instance/CIELCHuv.pm
Graphics::Toolkit::Color::Space::Instance::CIELUV
in lib/Graphics/Toolkit/Color/Space/Instance/CIELUV.pm
Graphics::Toolkit::Color::Space::Instance::CIERGB
in lib/Graphics/Toolkit/Color/Space/Instance/CIERGB.pm
Graphics::Toolkit::Color::Space::Instance::CIEXYZ
in lib/Graphics/Toolkit/Color/Space/Instance/CIEXYZ.pm
Graphics::Toolkit::Color::Space::Instance::CMY
in lib/Graphics/Toolkit/Color/Space/Instance/CMY.pm
Graphics::Toolkit::Color::Space::Instance::CMYK
in lib/Graphics/Toolkit/Color/Space/Instance/CMYK.pm
Graphics::Toolkit::Color::Space::Instance::DCIP3
in lib/Graphics/Toolkit/Color/Space/Instance/DCIP3.pm
Graphics::Toolkit::Color::Space::Instance::DCIP3Linear
in lib/Graphics/Toolkit/Color/Space/Instance/DCIP3Linear.pm
Graphics::Toolkit::Color::Space::Instance::DisplayP3
in lib/Graphics/Toolkit/Color/Space/Instance/DisplayP3.pm
Graphics::Toolkit::Color::Space::Instance::DisplayP3Linear
in lib/Graphics/Toolkit/Color/Space/Instance/DisplayP3Linear.pm
Graphics::Toolkit::Color::Space::Instance::HSB
in lib/Graphics/Toolkit/Color/Space/Instance/HSB.pm
Graphics::Toolkit::Color::Space::Instance::HSL
in lib/Graphics/Toolkit/Color/Space/Instance/HSL.pm
Graphics::Toolkit::Color::Space::Instance::HSV
in lib/Graphics/Toolkit/Color/Space/Instance/HSV.pm
Graphics::Toolkit::Color::Space::Instance::HWB
in lib/Graphics/Toolkit/Color/Space/Instance/HWB.pm
Graphics::Toolkit::Color::Space::Instance::Helper::OK
in lib/Graphics/Toolkit/Color/Space/Instance/Helper/OK.pm
Graphics::Toolkit::Color::Space::Instance::HunterLAB
in lib/Graphics/Toolkit/Color/Space/Instance/HunterLAB.pm
Graphics::Toolkit::Color::Space::Instance::NCol
in lib/Graphics/Toolkit/Color/Space/Instance/NCol.pm
Graphics::Toolkit::Color::Space::Instance::OKHSL
in lib/Graphics/Toolkit/Color/Space/Instance/OKHSL.pm
Graphics::Toolkit::Color::Space::Instance::OKHSV
in lib/Graphics/Toolkit/Color/Space/Instance/OKHSV.pm
Graphics::Toolkit::Color::Space::Instance::OKHWB
in lib/Graphics/Toolkit/Color/Space/Instance/OKHWB.pm
Graphics::Toolkit::Color::Space::Instance::OKLAB
in lib/Graphics/Toolkit/Color/Space/Instance/OKLAB.pm
Graphics::Toolkit::Color::Space::Instance::OKLCH
in lib/Graphics/Toolkit/Color/Space/Instance/OKLCH.pm
Graphics::Toolkit::Color::Space::Instance::ProPhotoRGB
in lib/Graphics/Toolkit/Color/Space/Instance/ProPhotoRGB.pm
Graphics::Toolkit::Color::Space::Instance::RGB
in lib/Graphics/Toolkit/Color/Space/Instance/RGB.pm
Graphics::Toolkit::Color::Space::Instance::RGBLinear
in lib/Graphics/Toolkit/Color/Space/Instance/RGBLinear.pm
Graphics::Toolkit::Color::Space::Instance::Rec2020
in lib/Graphics/Toolkit/Color/Space/Instance/Rec2020.pm
Graphics::Toolkit::Color::Space::Instance::Rec709
in lib/Graphics/Toolkit/Color/Space/Instance/Rec709.pm
Graphics::Toolkit::Color::Space::Instance::WideGamutRGB
in lib/Graphics/Toolkit/Color/Space/Instance/WideGamutRGB.pm
Graphics::Toolkit::Color::Space::Instance::YIQ
in lib/Graphics/Toolkit/Color/Space/Instance/YIQ.pm
Graphics::Toolkit::Color::Space::Instance::YPbPr
in lib/Graphics/Toolkit/Color/Space/Instance/YPbPr.pm
Graphics::Toolkit::Color::Space::Shape
in lib/Graphics/Toolkit/Color/Space/Shape.pm
Graphics::Toolkit::Color::Space::Util
in lib/Graphics/Toolkit/Color/Space/Util.pm
Graphics::Toolkit::Color::Values
in lib/Graphics/Toolkit/Color/Values.pm

Other files