To add an image to a course tile shown in the dashboard, you can go to the settings of the course first at the templates tab. Expand the template and click More at the course and then Settings.Here you can click on the image next to the course name to upload an image.The images must have the following dimensions: Width: 334px - Height: 140pxTake note: you can also upload the image in the template and configure that the image should me used in all courses. That saves a lot of clicking!The result: