Hopefully that makes it clear enough?

Yeah, It's pretty clear. I realized it. Thanks for it.

You already have the image as a pie so why not just overlay a background-coloured circle on the middle?

Whole day, I tried, But, still no success..

Could you pls give a try? It may be easy for you. I don't Want to stop writing this code.. I want to continue..

The other thing is How to Display values ($used and $free ) in pie chart?

in Bar chart,We have below line

show_values   => 1,
[download]

I need everyone's replies to complete this code.