export declare type IconColor = [string | null, string | null];
export declare type IconBase = [
    /** Icon's CSS class (e.g., "js-icon") */
    string,
    /** Icon's color CSS classes for light and dark mode */
    IconColor,
    /** Pattern for matching names or pathnames */
    RegExp,
    /** priority that determined icon's order of appearance */
    number?,
    /** Match against system path instead of basename */
    boolean?,
    /** to match executable names in hashbangs */
    RegExp?,
    /** to match grammar scope-names */
    RegExp?,
    /** to match alias patterns */
    RegExp?,
    /** to match file signatures */
    RegExp?
];
export declare type IconDbItem = [IconBase[], number[][], Record<string, number>];
export declare type IconDb = IconDbItem[];