public function actions()
    {
        return [
            'error' => [
                'class' => 'yii\web\ErrorAction',
            ],
            'captcha' => [
                'class' => 'yii\captcha\CaptchaAction',
                'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,
                // here
                'foreColor' => '0x55FF00',
                'transparent' => false,
                'fontFile' => '@frontend/web/fonts/Montserrat-Regular.ttf',

            ],
        ];
    }