Add setter to legacy skin configuration access
Add setter to legacy skin configuration access

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