How to use it in dark templates?

[chiliec]

No description provided.

[mdmunir]

What is dark templates?
Simple answer. it used like a official captcha.

[chiliec]

I mean may be you knows how to use it on dark background, like that:

[chiliec]

Official captcha is non-transparent, just white background:

[mdmunir]

got it

[dantux]

Hey mdmunir, I also want to use this on a dark template. I noticed if I change the protected function renderImage to output jpeg instead of png (imagejpeg), the background is white.
How can I extend your CaptchaAction? I tried to override the function, but for some reason doesn't work. Is it because the function is protected?

[dantux]

I found a workaround for now. In the view, I changed the template by setting the background to white:
'template' => '<span style="background-color: white">{image}</span><div class="col-xs-5 pull-right">{input}</div>',

Now it shows OK:

[mdmunir]

@dantux

I tried to override the function, but for some reason doesn't work. Is it because the function is protected?

Are you sure. Its should be OK.