Smil player has option to setup backup image to avoid black screen if something goes wrong during smil file download ( file does not exists ) or during XML to JSON conversion ( invalid XML ). Default backup image is provided by SignageOs, which is locally stored in SMIL player repository. Currently, only single image is supported.
There are two options how you can setup your backup image.
Option 1 - image stored locally in smil repository
Store image locally in
public/backupImage/backupImage.jpg file. Name of the backupImage has to be
backupImage.jpg at the moment.
Option 1 - provide url to image via timings in Box
Url has to be stored in
backupImageUrl variable in timmings in applet definition. Name of the file does not matter in this case.