import { DuetTheme } from "../common-types";
export declare function isCamelCase(str: any): boolean;
export declare function isDashCase(str: any): boolean;
export declare function capitalize(str?: string): string;
export declare function camelize(str?: string): string;
export declare function getTheme(theme?: DuetTheme): DuetTheme;
export declare function capitalizeFirstLetter(string: any): any;
/**
 * Add "-turva" to color names (or "Turva" to camelCase color names)
 */
export declare function postfixTheme(name: string, theme: DuetTheme): string;
export declare function getColorByName(name: string, theme?: DuetTheme): string | undefined;
export declare function convertToColorName(name?: string, theme?: DuetTheme): string;
export declare function getFontSizeByName(name: string): string | undefined;
export declare function getFontWeightByName(name: string): string | undefined;
export declare function getShadowByName(name: string): string | undefined;
export declare function rgbaColorFromRgb(color: string, opacity: number): string;
export declare function shadeRGBColor(color: string, percent: number): string;
export declare const breakpointToToken: {
    "xxx-small": string;
    "xx-small": string;
    "x-small": string;
    small: string;
    medium: string;
    large: string;
    "x-large": string;
    "xx-large": string;
    "xxx-large": string;
};
export declare const breakpointTokensUpTo: string[];
export declare const breakpointTokensFrom: string[];
export type DuetBreakpoints = keyof typeof breakpointToToken;