Update ReliefFrame and fix gradient surface leaks
Update ReliefFrame and fix gradient surface leaks

mminns/xwt,hamekoz/xwt,sevoku/xwt,TheBrainTech/xwt,directhex/xwt,mono/xwt,iainx/xwt,antmicro/xwt,cra0zy/xwt,akrisiun/xwt,hwthomas/xwt,lytico/xwt,residuum/xwt,steffenWi/xwt,mminns/xwt