Why Transparency property does not work with TDiagramLine?

VCL TMS Diagram Studio
1

Hello

What I mess here??
(FDiagram.DControls[1] as TDiagramLine).Pen.Width:=30; // ok
(AtDiagram1.DControls[1] as TDiagramLine).Transparency:=80; // Does not work!!!!

Please Help!

2

Please don't file support topics as feature requests. This is not a feature request.

3

What it "Does not work"? Please provide the full error, exact error.