Just wanted to let people know that I created a Mautic Theme that includes styling of popup items. Never seen it before, but it’s easy to do. The theme is available on Github, please share any feedback!
Custonext/mautic-theme: A basic theme for Mautic, the open-source marketing automation suite. It includes styling of forms and pop-up items. Basic styling of emails and pages is included to be completed at a later stage. (github.com)