Change font colors for Dark and Light themes

Hello,

I have a couple of things I can’t find the options for….

1. I would like to change the default color of the theme’s Dark and Light options, at least in the footer widgets. I see in the Advanced Typography options, there’s Widget Prices but nothing else. And the theme seems to be overriding my custom CSS. Is there a way to adjust the Dark and Light font colors?

2. I’m using the homepage layout for the Bike theme. I can’t find a way to make the sticky menu on the homepage white (light) rather than dark after scrolling. I want to keep the transparent main header, but make the sticky header white.

Thanks.