There's a slight bug when the screen width is bigger than 1150px, there are some white lines that appear when activating the drawer. This I've seen it with the app-side-nav-inner-toolbar, but not with the outer one And this was compiled on Chrome, with Angular 7 [Visual bug.zip](https://github.com/DevExpress/devextreme-angular-template/files/3192962/Visual.bug.zip)