where is the option to change the color on the category pages at the top

Hi there,

Any chance you can link us to the site in question?

You can use the private information field:
https://docs.generatepress.com/article/using-the-premium-support-forum/#private-information

Let me know :)

I'm sorry is it not clear on what I'm trying to ask?

When you click on a category and it takes you to the page of blog posts, at the top of the page there is a background color that is triangle shaped, how do I change that color on the category page?

at the top of the page there is a background color that is triangle shaped

That's not a default element.

Can you link me to the page in question so I can see what you are referring to?

Yes, it is on the SEARCH theme at the tope of every page.

Thank you

This should help:
https://youtu.be/QIN0EaPllO4?t=682

I'd recommend watching the entire video.