Title bar's color follows the loading bar's color

[azoththecreator]

First, this add-on is the best add-on to change title bar so far to me!
Thanks for making this add-on.

The problem is, when some websites are loading, the title bar follows their loading bar's color.
For example)

this is youtube, which is white perfectly.

but when i click the video, youtube loads the video, and has light-grey loading bar.

and now it happens, title bar becomes light-grey, which is the loading bar's color.

And this is my current settings page. Is there a way to fix this?

+) Is there a way to follow header's color even if the webpage is scrolled down already?

If I scroll this website and refresh it,

it becomes white.

Thanks!