Upload new images and use them as background images.
Click on the [Media > Upload assets] button to select the file to upload.
When you select an uploaded image, the image is inserted into the slide.
In Edit Video, select an inserted image and right-click to reveal the image settings menu.
Click "set image as background" in the settings menu to apply.
*If you want to apply the entire slide, click the [Edit Video > Apply to all]
> Make sure the "image" option is checked.
> All slides or From current selecred slide to select the range of sentences to apply.
