Previous and Next button to change background

[qubist-pixel-ux]

Is your feature request related to a problem? Please describe.
Currently there is no way to change the background (other than settings > reload button).

Describe the solution you'd like
Add a previous, next and pause button. Example : See the buttons at bottom : Tabliss

Describe alternatives you've considered
None

[victrme]

Planned for version 21 !