When the sidebar is expanded, a part of the header stays white rather than get grayscaled. Just expand the sidebar and see what I'm talking about. <img width="1473" alt="Screen Shot 2020-03-26 at 21 10 39" src="https://user-images.githubusercontent.com/17576065/77681364-46b8ec80-6fa6-11ea-8910-e5e9c080a31f.png">