Method __construct

/**
 * Constructor
 *
 * @param   string  $fg       Foreground color.
 * @param   string  $bg       Background color.
 * @param   array   $options  Style options.
 *
 * @since   4.0.0
 * @throws  \InvalidArgumentException
 */
public function __construct(string $fg = '', string $bg = '', array $options = [])
{
    if ($fg) {
        if (\array_key_exists($fg, static::$knownColors) == false) {
            throw new \InvalidArgumentException(sprintf('Invalid foreground color "%1$s" [%2$s]', $fg, implode(', ', $this->getKnownColors())));
        }
        $this->fgColor = static::$fgBase + static::$knownColors[$fg];
    }
    if ($bg) {
        if (\array_key_exists($bg, static::$knownColors) == false) {
            throw new \InvalidArgumentException(sprintf('Invalid background color "%1$s" [%2$s]', $bg, implode(', ', $this->getKnownColors())));
        }
        $this->bgColor = static::$bgBase + static::$knownColors[$bg];
    }
    foreach ($options as $option) {
        if (\array_key_exists($option, static::$knownOptions) == false) {
            throw new \InvalidArgumentException(sprintf('Invalid option "%1$s" [%2$s]', $option, implode(', ', $this->getKnownOptions())));
        }
        $this->options[] = $option;
    }
}