In the dialog box, choose the PNG file type, because PNG supports many colors and transparency. Select the image and the circle, right-click, and choose Save as Picture.Duplicate the circle (press Ctrl + D) and move the duplicate to the side for now.(To make sure it’s a perfect circle, press Shift as you drag out the circle on the slide.) Remove the outline and use a fill color that doesn’t exist anywhere in the photo. Draw a large circle and center it on the slide.Find an image of the night sky and insert it onto the slide, resizing and cropping as necessary to cover the entire slide.Here are the steps to create this animation (warning–it will take a while): I think of this as an introductory animation to show when the audience is entering the room, or during breaks.
