How can I add a CAPTCHA test to the contact form?

I'd really like to add a CAPTCHA test to the theme's contact form. I can't find an option for it, but the code looks like it's checking for a CAPTCHA error, so I assume it's possible. Can you help me out?

Thanks,
Nick

 

Hello,

We will add Google recaptcha in our next theme version update.

Thanks & Regards
Gourav Shrivastava

 

Great, thanks! Do you know when it will be released?

 

Hello,

Now we have added the Google recaptcha in our latest version 2.3.6 of Dzonia theme.
You can download the updated copy of Dzonia Theme from the members area (http://inkthemes.com/members/member)
and, upload and activate it in your dashboard.

Follow the link given below for reference.
http://www.inkthemes.com/how-to-update-a-premium-theme-by-inkthemes/05/