Added support for square backgrounds of different sizes. Suggested size range are 10-200. To create a background like this it should contain folders named with each size 10-200 and should contain light.png and dark.png for each size.
Added support for square backgrounds of different sizes.
Suggested size range are 10-200.
To create a background like this it should contain folders named with each size 10-200 and should contain light.png and dark.png for each size.

NightSwimming/Raptor-Chess,raptor-chess-interface/raptor-chess-interface,evilwan/raptor-chess-interface,evilwan/raptor-chess-interface,raptor-chess/raptor-chess-interface,raptor-chess/raptor-chess-interface,NightSwimming/Raptor-Chess,raptor-chess-interface/raptor-chess-interface,raptor-chess-interface/raptor-chess-interface,evilwan/raptor-chess-interface,raptor-chess/raptor-chess-interface,raptor-chess-interface/raptor-chess-interface,evilwan/raptor-chess-interface,NightSwimming/Raptor-Chess,raptor-chess/raptor-chess-interface,NightSwimming/Raptor-Chess