Graph surround colour reset

I suspect a simple question for those in the know, but I don’t and I cant find anything that might help me.
How can I get the colour of the graph surround the to be the same as the main summary screen? I can figure how to set the graph colours but not how to get the surround to match the main screen, as show in my attached image…
Help appreciated…
Many Thanks
Q


graph_colour.JPG

control panel
colours
graph tab
graph background

Brian
Thank you for your help, much appreciated.
Q