How do I change the font color on category descriptions'

I tried looking at the topics but they were closed and didn’t quite address my problem.
I am using Elegant themes Estore 4.6 and I would like to add a category description to the categories. I have for now removed them all because the blue color doesn’t show up over the background color.

I need to change the color to show up. I have looked in the menu and nothing seems to be labeled for the categories. I am thinking I may need to customize something but I am not sure what.

Suggestions or thoughts?
http://www.solarproducts.me/product-category/solar-panels/portable-solar-panels-battery-chargers/