How to change heading color and center in configurable list widget?

How can I change the header colors.  Example a is the one I want to change, example b is a matrix like what I want the configurable list to be.

a. 

b. 

Please add the following css code to the widget's custom css:

th.col2

{background: #e99b19}

th.col3

{background: #e4cf1d}

Or you can clone the demo form:

  https://form.jotform.com/61055012140941 

Let us know if we can assist you further.   

I didn't add any centering code because the header is already centered:

I apologize for not mentioning it on my first answer.