I have been working on the 'getting started' tutorial of the NavigationDrawer, available at https://help.syncfusion.com/js/navigationdrawer/getting-started.
The issue is that, the sprite images are not showing up correctly when using 'data-ej-imageclass'. But, when using individual images instead of sprite, it is working as expected.
This is how the Navigation Drawer looks like, with the sprite sheet.