import ' rollup-plugin-inject-process-env';
import { WidgetTheme } from "@xapp/stentor-chat-widget";
interface Props {
    readonly theme?: WidgetTheme;
}
/**
 * Collects the defined theme CSS variables as [name, value] entries, skipping
 * empty values.
 */
export declare function buildStyleVariables(theme?: WidgetTheme): Array<[string, string]>;
export declare function buildStyleContent(theme?: WidgetTheme): string;
export default function WidgetStylesheet(props: Props): null;
export {};