First of all props on an awesome theme and awesome support! So happy I found Generatepress, keep up the good work.
My site is here:
I have the nav looking almost how I want it, its slightly transparent, but as I scroll suddenly another lighter background appears behind it, then disappears as I continue scrolling.
This results in the nav briefly “flashing” as you scroll down the page, which doesn’t look good.
I’ve tried adding some css to change the colour of that background to #525265, but nothing seems to take effect: