How do I change fonts and their sizes and colors? Is there a way to also change the color of the boxes on the product order form?

You can customize the font sizes and colors of texts on your form using custom CSS codes. Please see this guide on how to Customize-Your-Form-Using-Custom-CSS-Codes.

While here's a guide on How-to-Inject-CSS-Codes-to-Widgets.

Let me check the form further and provide you the code you can use. I will get back to you on this thread shortly.

Hi again,

So here's a sample code you can use to customize the color of the checkboxes you have there in the payment field. It's a bit lot of coding though, but here it is:

https://pastebin.com/jTmN2HL4

You can copy the code and add it to the current custom CSS codes you have in the form.

I have implemented this on a cloned form: Here's how it looks on the form:

https://form.jotform.com/200185721401947