Transparent backround in TAdvGDIPChartView


can you please advice me how to achieve transparent background in 


I use pie charts on adv office pager and it looks disturbing with solid background on the tab with gradient background.


Sorry, there is currently not a built-in capability to have a transparent background.
The background is customized via the designer, settings are in the Background tab and you can choose a gradient as background color.

Thank you, I added it as feature request.