I am a complete noob when it comes to web design but just started building a website using Flatsome UX Builder. It's going pretty well but I've hit a wall when trying to change the color of the arrow and title of an accordion so it can be seen against the background of the page.

The current button looks like this:

I would like to look like this but with the text in white so it's visible against the grey background:

This is the code at the beginning of the accordion:

[/ux_text]
[accordion]

[accordion-item title="Read more" class="Accordion name"]

[row_inner]

[col_inner span__sm="12"]

[ux_text text_color="rgb(255,255,255)"]

I hope I provided enough information, let me know if not.

Thanks a lot!