This is a Delphi port from the CPP version of Google Material Color Utilities
Nothing fancy, just a line-to-line port with some Delphisms to deal with CPP std lib but it requires at least Delphi 11 (inline variables declarations)
All tests have been ported and require DUnitX and TestInsight to be run.
The plan is to build a Custom Style class so delphi apps could automagically themed... (help needed)
Use PictureToColor() from Material.VCL to get a key color to initialize an instance of TDynamicScheme using one of the TDynamicSchemeBuilder.
See ProcessImage() and UpdateTheme() methods in GUITest.Mainform.pas
Algorithms and utilities that power the Material Design 3 (M3) color system, including choosing theme colors from images and creating tones of colors; all in a new color space.
See cheat sheet at Material Color Utilities
The library is composed of multiple components, each with its own folder and tests, each as small as possible.
This enables easy merging and updating of subsets into other libraries, such as Material Design Components, Android System UI, etc. Not all consumers will need every component — ex. MDC doesn’t need quantization/scoring/image extraction.
| Components | Purpose |
|---|---|
| blend | Interpolate, harmonize, animate, and gradate colors in HCT |
| contrast | Measure contrast, obtain contrastful colors |
| dislike | Check and fix universally disliked colors |
| dynamiccolor | Obtain colors that adjust based on UI state (dark theme, style, preferences, contrast requirements, etc.) |
| hct | A new color space (hue, chrome, tone) based on CAM16 x L*, that accounts for viewing conditions |
| palettes | Tonal palette — range of colors that varies only in tone Core palette — set of tonal palettes needed to create Material color schemes |
| quantize | Turn an image into N colors; composed of Celebi, which runs Wu, then WSMeans |
| scheme | Create static and dynamic color schemes from a single color or a core palette |
| score | Rank colors for suitability for theming |
| temperature | Obtain analogous and complementary colors |
| utilities | Color — convert between color spaces needed to implement HCT/CAM16 Math — functions for ex. ensuring hue is between 0 and 360, clamping, etc. String - convert between strings and integers |
The Science of Color & Design - Material Design
The Material Theme Builder Figma plugin and web tool are recommended for design workflows. The Material Theme Builder delivers dynamic color to where design is done. Designers can take an existing design, and see what it looks like under different themes, with just a couple clicks.
The original code belongs to Google and this port is licenced under the Apache Public Licence v2