Color on pop-up changeable?

How can I change the color of my pop-up to just be white like the demo version? Is this something with the code in my website or is it something in Waving? Please see my example where my pop-up is in green.

https://www.gobeyondthesky.com/solutions/draft2/

And for anyone having issues getting their pop-ups to work, try updating your Waving version. It worked like a charm!

https://www.ads-software.com/plugins/waving-portfolio/