Extended Color Selector

A powerful color selector for Krita 5.

Features

• Supports color picking in 11 color models. (Gray, SRGB, HSV, HSL, LinearRGB, XYZ, Lab, OkLab, OkLch, OkHsv, OkHsl, Normal(Normal map))
• Support HDR color picking.
• Integrated with color management from Krita. Display the correct color under specific color profile.
• Fully modular, and highly customizable.
  • Three wheel shapes: square, triangle, and circle.
  • Channel sliders and ring to modify the third channel.
  • Swappable and revertable axes.
  • Color picker rotate with ring.
  • Scale to fit SRGB gamut for color models in CIE color space.
• Portable color selector. Open the selector at anywhere on canvas using shortcut.
• Shift and Alt modifiers to shift slowly.
• Out of gamut hinting.

How to use

Go to Releases, download the latest package.

Go to you Krita preference directory, which is, by default,

• $HOME/.local/share/krita/ for Linux
• %APPDATA%\krita\ for Windows
• ~/Library/Application Support/Krita/ for macOS

Unzip the plugin package into pykrita folder. So there will be one more extended_color_selector.desktop and extended_color_selector inside pykrita.

Launch Krita.

Go to Settings -> Configure Krita -> Python Plugin Manager, find Extended Color Selector, enable it, and restart Krita.

Why the name

To make it looks/sounds like a native Krita docker, just like wide-gamut color selector and advanced color selector.

How to download unreleased versions

Sometimes, you may want to download unreleased versions of this plugin. For example there's a bug fix, or a new feature.

• Go to Actions tab.
• Click on the top most workflow run that has the name "Build Extended Color Selector (Qt5)".
• Scroll down to find the "Artifacts" section, and download the ExtendedColorSelector-{plugin-hash}-{krita-hash}-{os}.zip file.

And in more uncommon cases, you are using a different Krita version than the one used in CI, and even more uncommonly, the library version is changed that this plugin cannot link to it, you can

• Fork this repo.
• Modify target_krita_commit to the one you are using.
• Push and wait the CI.

If you are lucky enough, when internal APIs don't change, the CI will success and you can get your plugin in the "Artifacts" section.

Well, in even even more uncommon case, the internal APIs change, uhhh, you likely have to modify the source code yourself, or wait for the next Krita release. This plugin will follow the latest Krita release.

How to build

First, you need to follow Building Krita from Source page from Krita manual, and build Krita successfully.

Then, clone this repository into krita/plugins/ folder.

The directory structure of Krita source code should be like this:

krita/
  ├── plugins/
  │    ├── ExtendedColorSelector/   # This repository
  │    ├── CMakeLists.txt   # The CMakeLists.txt you are going to modify
  │    └── ...
  └── ...

Next, open CMakeLists.txt, and add this line after the last add_subdirectory( ... ) line:

add_subdirectory( ExtendedColorSelector )

Finally, build again, and in the install directory, you will find the plugin extended_color_selector.

• On Windows, it should at _install\extended_color_selector
• On Linux, it should at /home/appimage/appimage-workspace/krita.appdir/usr/extended_color_selector inside the container.

It is recommended to create symlinks in pykrita folder to the install folder so you don't need to manually copy after every build.

Screenshots

Credits

Code from extension.py was copied from krita-vision-tools, which is a nice plugin allowing you to select objects with power of neural networks, and modified a little bit.

Most color model conversion functions are translated from Bevy project, in bevy_color rust crate, and under MIT license. It's a very nice open-source game engine written in rust.

ok_color.h downloaded from Björn Ottosson's Blog , and tuned a bit for the project, under MIT license.