Webflow - Sentient Wellness Foods (Arctic template) Editing Nav Bar

I am having trouble changing the blue area in the navigation bar at the top of this template (Arctic template). Any help will be greatly appreciated.


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

https://preview.webflow.com/preview/sentient-wellness-foods?utm_medium=preview_link&utm_source=dashboard&utm_content=sentient-wellness-foods&preview=3b4dfff5d44c30e97ce51b351b6f1937&mode=preview