Hi, I am following the "Custom Themes" guide at https://bootstrapstudio.io/tutorials/customizing-design. It says that "you can import your theme CSS file, and it will be available to use in all your designs." But I dont understand how to import it and exactly which file / files to import in File -> Design Settings -> Themes. If I import a css file for a theme there from Bootswatch it simply does not apply.
But if I on other hand copy some css or min.css file from some other site and import it in Design tab -> Styles I see that theme is applied.
What am I doing wrong in File -> Design Settings -> Themes? What should one really import there and how?
Best Regards from a Bootstrap Studio beginner.