php-school / cli-menu

        return $this->fg;

    }

    public function setFg($fg, string $fallback = null) : self

    {

        if (is_int($fg)) {

            if ($this->terminal->getColourSupport() < 256) {

                $fg = $fallback;

            } elseif ($fg < 0 || $fg > 255) {

                throw new \Exception("Invalid colour code");

            }

        }

        $this->fg = $fg;

        $this->generateColoursSetCode();

        return $this;

    }

    public function getBg() : string

    {

        return $this->bg;

    }

    public function setBg($bg, string $fallback = null) : self

    {

        if (is_int($bg)) {

            if ($this->terminal->getColourSupport() < 256) {

                $bg = $fallback;

            } elseif ($bg < 0 || $bg > 255) {

                throw new \Exception("Invalid colour code");

            }

        }

        $this->bg = $bg;

        $this->generateColoursSetCode();

        return $this;

    }

    public function getWidth() : int

    {