The navigation tree wont change color nor background-color. While a menu widget like Menu bar wil.
Can some one explain to why this is and how i can solve it.
The navigation tree is setup as a list. In order for it to change the background color you need to set the .mx-navigationtree .navbar-inner > ul > li > a you can find this configured in your sass file.
Or create a new class to overwrite this.