Its funny because I have 2 websites using Sydney and the behaviour is so different.
In overlandgreece.com, the menu header gets darken while scrolling in the front-page.
It does not happen the same at thepinproject.eu.
CSS is the same though:
body:not(.home) .site-header {background-color: rgba(0,0,0,0.4);}
Any idea?
P.S. I am talking about 1.73 version. Even the wording is different in some options when in Customize (WP menu)