Customizing the background
It is easy to customize the appearance of your prezi. There are many changes we can make to do this. All of these changes will be done in the Customize panel. To open this, open the Customize menu above the canvas. Some of the tasks we can perform here include changing the background image or applying a theme to our prezi.
In this section, we will look at the relationship among the various visual materials in our prezi. We will then show you how to delete and insert a background image. The panel used to change the background opens to the right of the canvas.
The following screenshot shows you where we go to customize background images (Change background) and change theme (Apply theme):