/**
 * Shared terminal styling, so every ccx screen looks like the same tool.
 * Colour is opt-in per call: callers pass whether the output is a real terminal,
 * which keeps piped output clean and testable.
 */
export declare const codes: {
    reset: string;
    bold: string;
    dim: string;
    green: string;
    yellow: string;
    red: string;
    cyan: string;
    magenta: string;
    brightGreen: string;
    brightYellow: string;
    brightRed: string;
    brightCyan: string;
};
/**
 * Colour on a scale from plenty to spent.
 *
 * Deliberately four bands rather than "dim until it is nearly gone". Everything
 * below 90 percent used to render the same shade of grey, which made a page of
 * numbers read as one flat block and hid the difference between an account at 5
 * percent and one at 85.
 */
export declare function shadeForUsed(used: number | null): string;
/** Wrap `text` in an ANSI code when colour is on. */
export declare function paint(text: string, code: string, color: boolean): string;
/** A dim horizontal rule of the given width. */
export declare function rule(width: number, color: boolean): string;