What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
You originally had two topics in your title so I have corrected this in the appropriate format for you.
We ask that you please only ask one question per thread along with providing details about it.
You can read more about how to change your font family type in this guide here -
And as for your secondary question about changing the color of your form you can find that topic which I have moved over here.