pejakm/QupZilla — comment on commit a639d9a9b62f15c0e895641713de9784bfe61f21
File:  line 0
By pejakm:

No GUI for now. Manual edit of the settings file required for this to work.

In settings.ini file under the SpeedDial group add this:

background=file:///path/to/your/image/image.ext
backsize=option

where "ext" can be any image extension (even gif) and "option" is "auto" (default if not otherwise stated), "cover", etc. Look here for more: http://www.css3.info/preview/background-size/

I don't yet know whether should we make gui for changing this option in QupZilla's settings or directly implement it in speed dial.