A value between 0 and 1 that specifies the opacity of the interactor. 1 means
fully opaque, 0 means fully transparent (i.e. invisible). The default is 1.
Namespace:
TallComponents.InteractionAssembly: TallComponents.PDF.Controls.WinForms (in TallComponents.PDF.Controls.WinForms.dll) Version: 2.0.20.0
Syntax
Remarks
At the moment, many interactors do not support opacity. Instead, they will
be drawn fully opaque when Opacity > 0.5, and they will be invisible when Opacity is
smaller.