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Random new background from unsplash.com
When using the background URL option a new image should be grabbed each time the page loads.
I use the unsplash api urls but it appears it grabs an image and caches it until I go back into settings.
This should fetch a new image each load or have options for hourly, daily and random.
Customer support service by UserEcho
Dial's preview should not update everytime you open the dial. I can be automatically updated if you turn on Auto Update in dial's settings:
If you're on the background settings page, it's only for a local file.