import { Rule } from '@angular-devkit/schematics';
import { ProjectDefinition } from '@angular-devkit/core/src/workspace';
import { JsonValue } from '@angular-devkit/core';
import { ChangeThemeOptions } from './model';
export default function (_options: ChangeThemeOptions): Rule;
export declare function getProjectTargetOptions(project: ProjectDefinition, buildTarget: string): Record<string, JsonValue | undefined>;
export declare function removeThemeBasedStyles(styles: (string | object)[]): (string | object)[];
export declare const styleCompareFn: (item1: string | object, item2: string | object) => boolean | "" | undefined;