Sticky nav on mobile: color issues

Hi,

We applied this code on our website for mobile version: https://gist.github.com/diggeddy/c1515d790d90ea875055fa5d1acefa82

It works perfect but we are finding color issues when Slide Out menu is closed (it appears transparent and we want it blue like sticky nav on desktop). As you can see, there are color customizations per page, we have used different Elements to achieve this and it seems that it is overwriting the color of the bar in mobile.

We don't know how to fix it keeping the color we want in the desktop menu. How could we do that?

Thank you very much!