The properties of an image frame include the item [Disposal Method].
Using this item, you can specify how an image is disposed when it is replaced with the next image.
You can make this setting using the "Image properties" dialog box.
You can select one of the following four deletion methods:
Leave the image as is. (Leave)
The original image is overlaid with the next image.
Restore to background color. (Erase)
The image is deleted and replaced with the background color.
Restore to previous state. (Previous)
The first frame is deleted, being replaced with the previous image, which was on the screen before the first frame. Be careful with this method
because not all browsers or applications support this method of deletion.
Not defined (None)
The processing performed in this case is dependent on the browser or other application being used to display the image. Web Animator itself performs the same
processing as that when "Leave the image as is" is selected.