1. In the Editor section of your Wix page, right-click on your form and select App Settings.
2. Make sure you are logged in your 123FormBuilder account or hit Connect Account, in the popup window.
3. Return to the 123FormBuilder popup window.
4. Go to Choose Theme and click on the arrow on the left side of the theme’s name. This will open the themes menu on the right where you can select your theme or create a new one.
To save yourself the time and energy, customize your theme directly in Wix from now on. It’s easier this way. And do not forget to save your Wix page before exiting the editor.