Wow, wow, wow! :)
Nicer and nicer, curiouser and curiouser ;).

Implemented displaying of svg background created by Mauricio.
Be sure to check it out!

The chips are a bit shifted currently as I still need to find a way to properly calculate playfield rect.
Moreover this rect can vary from one background to another (if we'll support custom backgrounds)...
Perhaps Mauricio can advice me something on common way to determine bounding rect of particular element of svg.
I've seen something like this in QSvgRenderer API.