vijinho / kohana2-legacy

        if (! empty($config['background'])) {

            Captcha::$config['background'] = str_replace('\\', '/', realpath($config['background']));

            if (! is_file(Captcha::$config['background'])) {

                throw new Kohana_Exception('captcha.file_not_found', Captcha::$config['background']);

            }

        }

        // If using any fonts, check if they exist

            Captcha::$config['fontpath'] = str_replace('\\', '/', realpath($config['fontpath'])).'/';

            foreach ($config['fonts'] as $font) {

                if (! is_file(Captcha::$config['fontpath'].$font)) {

                    throw new Kohana_Exception('captcha.file_not_found', Captcha::$config['fontpath'].$font);

                }

            }

        }