How to make iOS header transparent?

Hi! I’m trying to make my mobile dashboard look more optimized and smooth, so I want to make header transparent. Changed “app-header-background-color” to “transparent” or “none”, but it removes only one part of header. So, how can I make transparent another part of that header.

try --app-theme-color

It works but only with color. If I try to make it transparent, it becomes black