import type { Rgb, Style, Tone } from "../types.js";
export interface Theme {
    name: string;
    tones: Record<Tone, Rgb>;
    surface: Rgb;
    surfaceRaised: Rgb;
    text: Rgb;
    muted: Rgb;
}
export type ThemePresetName = "midnight-cyan" | "aurora" | "ember" | "graphite" | "paper";
export declare const defaultTheme: Theme;
export declare const themePresets: Record<ThemePresetName, Theme>;
export declare function defineTheme(theme: Partial<Theme> & {
    name: string;
}): Theme;
export declare function toneStyle(theme: Theme, tone?: Tone, style?: Style): Style;
export declare function themePresetNames(): ThemePresetName[];
export declare function getThemePreset(name?: string): Theme;
export declare function normalizeThemePresetName(name?: string): ThemePresetName;
export declare function mixRgb(a: Rgb, b: Rgb, amount: number): Rgb;
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