I am now facing a problem of Background color changing. In the graph, I would like to present the actual and plan(according to users' selection) figures of different BUs by a stacked bar chart. I want to change the transparency of the Plan stack bar but I am not able to do so. I have tried to set conditions at the background color setting under the expression but it does not work. I have attached the qvw and please take a look of it. Thank you.