/**
* The per-series encodings applied while `(forced-colors: active)` matches, shared by every chart
* in this family so a consumer sees one vocabulary across `<lr-chart>`, `<lr-box-plot>`, and
* `<lr-lite-chart>`.
*
* Forced-colors mode exposes only a handful of system colors, so the eight-entry
* `--lr-color-chart-*` ramp is deliberately remapped onto a repeating three-value cycle in
* `internal/specialist-tokens.styles.ts`. Series 1/4/7 then paint in literally the same color.
* Texture, line dash, and point shape are the channels that keep those repeated colors apart
* without substituting an arbitrary author color the user's high-contrast theme never asked for.
* Nothing here is opt-in: the encodings only exist while the media query matches.
*/
export declare const FORCED_COLOR_ENCODINGS:readonly[{readonly name:'solid';readonly dash:number[];readonly pointStyle:'circle';},{readonly name:'horizontal';readonly dash:readonly[2,2];readonly pointStyle:'rect';},{readonly name:'vertical';readonly dash:readonly[8,3];readonly pointStyle:'triangle';},{readonly name:'diagonal';readonly dash:readonly[8,3,2,3];readonly pointStyle:'rectRot';},{readonly name:'reverse-diagonal';readonly dash:readonly[1,3];readonly pointStyle:'cross';},{readonly name:'crosshatch';readonly dash:readonly[10,2];readonly pointStyle:'crossRot';},{readonly name:'dots';readonly dash:readonly[6,2,1,2];readonly pointStyle:'star';},{readonly name:'checker';readonly dash:readonly[12,3,3,3];readonly pointStyle:'line';}];export type ForcedColorEncodingName=(typeof FORCED_COLOR_ENCODINGS)[number]['name'];
/** The encoding for a series index, cycling once the ramp runs out. */
export declare function forcedColorEncoding(index:number):(typeof FORCED_COLOR_ENCODINGS)[number];
/**
* Whether the view is rendering under a forced-color palette. Wrapped in `try`/`catch` because a
* detached or cross-origin-restricted view can throw on `matchMedia`, and a missing accommodation
* must never take the chart down with it.
*/
export declare function forcedColorsActive(view?:Window|null):boolean;
/**
* Builds a small deterministic `CanvasPattern` for a series index, painting `texture` over
* `background`. Returns `background` unchanged whenever a pattern cannot be produced (no 2d
* context, `createPattern()` declining), so a caller can always assign the result straight to a
* Chart.js color slot.
*/
export declare function createForcedColorPattern(doc:Document,index:number,background:string,texture:string):CanvasPattern|string;
/**
* The DOM legend's half of the same accommodation, shared verbatim by every chart in this family.
* `data-encoding` is emitted only while `(forced-colors: active)` matches, so these rules stay
* inert otherwise and need no media query of their own. The inline system color remains one
* channel; the texture mirrors whatever the plot painted, so repeated colors stay distinct in the
* legend too. The swatch is the data key, so it opts out of forced-color adjustment; its enclosing
* button and focus chrome stay system-controlled.
*/
export declare const forcedColorLegendSwatchStyles:import("lit").CSSResult;