Tank auth recaptcha does not come with default. How can I apply recaptcha theme/custom theme to tank auth recaptcha?
Tried adding following in page's <head> tag but no luck.
<script type="text/javascript">
 var RecaptchaOptions = {
    theme : 'red'
 };
 </script>
Tried changing auth.php's _create_recaptcha() method like this.
$options = "<script>var RecaptchaOptions = {theme: 'red', custom_theme_widget: 'recaptcha_widget'};</script>\n";
Then I got
 
                        
You are in the right path, next thing you have to do is that remove explicit call for recaptcha components from the view . Then it will work as expected