feat: add 5 new color functions from graph-engine#10
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Add the following functions ported from graph-engine: - distance: Calculate Euclidean distance between colors in OKLab/Lab - match_alpha: Find alpha that blends fg over bg to produce a reference color - contrasting_alpha: Find minimum alpha for target contrast (binary search) - contrasting_from_array: Find first color meeting contrast threshold - sort_by_distance: Sort colors by distance/contrast/hue/lightness/chroma All functions are pure TokenScript with no external dependencies. Tests validated against graph-engine test cases where available.
Add the following functions ported from graph-engine: - distance: Calculate Euclidean distance between colors in OKLab/Lab - match_alpha: Find alpha that blends fg over bg to produce a reference color - contrasting_alpha: Find minimum alpha for target contrast (binary search) - contrasting_from_array: Find first color meeting contrast threshold - sort_by_distance: Sort colors by distance/contrast/hue/lightness/chroma All functions are pure TokenScript with no external dependencies. Tests validated against graph-engine test cases where available.
…studio/tokenscript-schemas into feat/add-color-functions
Updated contrasting_alpha, contrasting_from_array, match_alpha, and sort_by_distance functions to use XYZ-D65 for internal luminance/contrast calculations while returning the original input color(s) unchanged. Adjusted schema descriptions, requirements, and tests to clarify that output colors remain in the same color space as input, improving gamut-agnostic accuracy and user flexibility.
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Add the following functions ported from graph-engine:
All functions are pure TokenScript with no external dependencies. Tests validated against graph-engine test cases where available.