Want to get that same great look that Google’s Captcha has? Check out how easy it is to set up the ASPxCaptcha control to get that same look and feel:
How?

How?
Here’s 3 easy steps for the ASPxCaptcha:
Set a CodeLength property to 10
Set the ChallengeImage's BackgroundColor property to 'Transparent'
Set the ChallengeImage's ForegroundColor property to '#43B468' (you can also dynamically change the ForegroundColor on PageLoad to get different text colors just like in Google's Captcha).
Here’s the ASPX markup:
Read more: DevExpress