export interface Vec2 {
    x: number;
    y: number;
}
export interface GradientHandles {
    start: Vec2;
    end: Vec2;
    width: Vec2;
}
export interface Mat2x3Object {
    m00: number;
    m01: number;
    m02: number;
    m10: number;
    m11: number;
    m12: number;
}
export type Mat2x3Array = [[number, number, number], [number, number, number]];
export type BlendVerdict = "exact" | "approximated";
export interface BlendModeResult {
    cssMode: string;
    verdict: BlendVerdict;
}
export type GradientKind = "LINEAR" | "RADIAL" | "ANGULAR" | "DIAMOND";
export interface GradientGeometry {
    kind: GradientKind;
    handles: GradientHandles;
    start: Vec2;
    end: Vec2;
    center: Vec2;
    rx: number;
    ry: number;
    rotationDeg: number;
    fromDeg: number;
}
export declare function mat2x3FromArray(m: Mat2x3Array): Mat2x3Object;
export declare function invert2x3(m: Mat2x3Object): Mat2x3Object | null;
export declare function handlePositionsFromObjectTransform(t: Mat2x3Object): GradientHandles | null;
export declare function gradientGeometryFromTransform(kind: GradientKind, transform: Mat2x3Object, box: {
    width: number;
    height: number;
}): GradientGeometry | null;
export declare function handlePositionsFromArrayTransform(t: Mat2x3Array): GradientHandles | null;
export declare function resolveGradientHandles(gradientHandlePositions: Array<Vec2> | undefined): GradientHandles | null;
export declare function gradientAngleDegrees(paint: {
    gradientHandlePositions?: Array<Vec2>;
}, box: {
    width: number;
    height: number;
}): number | null;
export declare function gradientAngleDegreesFromHandles(handles: GradientHandles, box: {
    width: number;
    height: number;
}): number;
export declare function gradientRayAngleDegreesFromHandles(handles: GradientHandles, box: {
    width: number;
    height: number;
}): number;
export declare function remapLinearStopPosition(handles: GradientHandles, box: {
    width: number;
    height: number;
}, angleDeg: number): (position: number) => number;
export declare function vectorLength(from: Vec2, to: Vec2, box: {
    width: number;
    height: number;
}): number;
export declare function cssBlendMode(figmaBlendMode: string): BlendModeResult | null;