import { TextLayout } from 'mono-layout';
import { IRawTheme } from 'vscode-textmate';
export type Theme = {
    tokenColors: IRawTheme[`settings`];
};
export declare function addSyntaxHighlightSupport(textLayout: TextLayout): {
    onRefresh: Set<() => void>;
    activate(scopeName: string | null): Promise<void>;
    getGrammars(): {
        scopeName: string;
    }[];
    setGrammars(grammars: Array<{
        scopeName: string;
    }>): void;
    getTheme(): Theme;
    setTheme(theme: Theme | null): void;
    getTokens(): [string, string, string][][];
};