return this;
    }

    public Ansi reset() {
        return a(Attribute.RESET);
    }

    public Ansi bold() {
        return a(Attribute.INTENSITY_BOLD);
    }

    public Ansi boldOff() {
        return a(Attribute.INTENSITY_BOLD_OFF);
    }

    public Ansi a(String value) {
        flushAttributes();
        builder.append(value);
        return this;
    }