The Onyx "improvements" are stuck together with chewing gum.
If you don't ever run the Onyx home app your sleep images will be screwed up.
Simply save your sleep image in:
Code:
/data/local/assets/images/standby-1.png
/data/local/assets/images/standby-2.png
/data/local/assets/images/standby-3.png
Use 3 copies, links don't seem to work.
Or pick 3 images to rotate.