@pbroom/color-kit/driverSlider gradient
OklchSliderModelChannel
OKLCH channels: l 0..1, c 0..~0.4, h degrees, alpha 0..1.
import type { OklchSliderModelChannel } from '@pbroom/color-kit/driver';slider-gradient.ts:38type OklchSliderModelChannel = 'l' | 'c' | 'h' | 'alpha';