Reason: Usually, the images/pictures have large size. If the diagram contain images, the resource loading and download speed will be greatly decreased. Therefore, all downloaded diagrams don't include pictures by default. The preview image is just an example. You can add appropriate pictures to the downloaded diagrams.
Option ONE: Insert pictures in the diagram from iSlide Picture Library
Click on the shape placeholder you want to fill;
Select the appropriate picture in [picture library], click on picture to insert it to the shape with one click.
Option TWO: Replace the image in the diagram with "Picture Fill"
If you want to replace the "shape placeholder" of "picture" in the illustration with the picture in the local computer, you can set it in "Format Picture".
Picture or texture fill
- Insert picture from file