I'm relatively new to Wix and i've done a lot of work just building web applications in just code, for example using Python/Flask and then on the client using React or Angular. So far I like the flexibility Velo offers and we are able to implement some complex features. One thing i'm struggling with is trying to stay within the Wix design model (i.e. using the Members built in functionality) while trying to get the site's login and sign up flows to fit with my applications requirements. At the moment i'm trying to set the background color for the Member Signup and Login "Default Form". It seems to pull the color from the theme and it seems to use the darkest color from color 1 in the theme. But I want a light color for the background of these forms. Is this possible? Has Wix only implemented a dark color theme for the signup and login? I'm trying to leverage the default forms, because I want to offer Facebook and Google authentication. If I select Custom or Velo for my signup and login forms, I lose this capability. Anyone able to help?