Plot Area color and Selected Item color

Ribeiro, Emilia [ext] 1

I'm working with LineSeries charts and I need to change the background color of the plot area. I'm also trying to change the color of the selected item without success. As it's possible to see in the image, the selected item is red (same item for the three lines series - iteration 14) but it's not visible enough the difference.
Can you give me any help with that?

DaisyTian-1203 11,616 Reputation points

2020-12-17T04:15:10.56+00:00

@Ribeiro, Emilia [ext] Did your Plot Area refer to Telerik Plot Area? If your Plot Area is from Telerik, you need to contact the Telerik team. If it is not from Telerik, please give more details about your LineSeries, I need to know how do you create your LineSeries.
Ribeiro, Emilia [ext] 1 Reputation point

2020-12-17T10:22:50.487+00:00

No, it's not Telerik, I'm using System.Windows.Controls.DataVisualization.Toolkit"

I already found the way to change the background of the plotArea but for the selected item I really don't know how to do it
DaisyTian-1203 11,616 Reputation points

2020-12-18T08:10:07.41+00:00

@Ribeiro, Emilia [ext]
Did you meet any error in your code? Could you provice all the code shown in the picture? It allows me to test and analyze more effectively.