在visual塊，右鍵Column選擇Conditional formatting
舉例，比如difference > 0 顯示紅色，否則<0顯示綠色
如何根據 measure 寫特定條件來更換背景色呢？
舉例：先創建measure ：TY FCST VS AOP Color = if (Data[TY FCST VS AOP] >=0 ,"#ff0000","#66ff33") //紅和嫩綠
OTHER REF:https://datacornering.com/power-bi-line-chart-marker-color-conditional-formatting/