make scaling container background use BackgroundScreenStack with BackgroundScreenDefault
make scaling container background use BackgroundScreenStack with BackgroundScreenDefault

DrabWeb/osu,2yangk23/osu,peppy/osu-new,ZLima12/osu,NeoAdonis/osu,ppy/osu,ZLima12/osu,smoogipoo/osu,UselessToucan/osu,DrabWeb/osu,johnneijzen/osu,peppy/osu,smoogipoo/osu,UselessToucan/osu,EVAST9919/osu,UselessToucan/osu,smoogipooo/osu,peppy/osu,NeoAdonis/osu,EVAST9919/osu,ppy/osu,ppy/osu,johnneijzen/osu,smoogipoo/osu,NeoAdonis/osu,peppy/osu,2yangk23/osu,DrabWeb/osu