In the Visual Aid builder, click the "+Add Visual" bar.
In the pop up, click Image, and click continue.
Give the image a name. This name will be what is displayed on your controls during your presentation.
Click "Choose File" and locate the image file on your device. Acceptable image files are .png, .jpg, .jpeg, and .gif.
You can preview your file by clicking on the button labeled with your image name. To move the visual aid or delete it, click the three dots next to the title.