The Paperform form builder gives you a lot of control over how your form looks and behaves.
Using the theme section, you can customize text font, weight, size, color, headings, background images and more, as well as change the general styling of questions and other UI elements, and even add custom CSS. Here's a breakdown of what will be available to you depending on your plan.
On Essentials, you have default (basic) styling capabilities like adding a background image, setting an active color, and choosing a font/size for your headings, question titles and descriptions.
With Pro and Agency, you have access to higher levels of control, including:
Custom CSS and HTML is only available on Agency only, and you can find commonly used class names here.