VA1:=SUM(IF(C>REF(C,1),V,-V),FROMOPEN);BGGX:=CONST(HHV(VA1,0));BGDX:=CONST(LLV(VA1,0));TZVA:=200*(VA1-BGDX)/(BGGX-BGDX)-100;ZERO:=200*BGDX/(BGDX-BGGX)-100;DRAWBAND(TZVA,RGB(88,0,88),ZERO,RGB(0,88,0));