How to remove the blender for Piechart in SSRS

If your Pie chart is getting getting blender.... Please have a look with below picture.

Please follow the below steps

Select that Pie chart, Press F4 for properties. Please find the screen shot  below.

 

Change the Background Color Property to White.

After changing the Background color property just run that report.

Even ... that report is showing the Blender, Please remove the Reportname.rdl.data file  in your report folder. Then it chart will get refresh.