Transparent Bitmap Custom Pane (Panel Edit)
This control has been retained but isn't really required as any control can have its transparency controlled using standard parameters. This is a display only control and doesn't interact with the user.
The graphic file to load and use.
The transparency level of the bitmap can either be static or can be variable based on the setting in a V variable.
If Transparency is set to static, this parameter sets the transparency level.
If the transparency level of the control is set variable, this parameter specifies which V variable hold the transparency level of the control.
If the bitmap has a transparent color, use this to specify the color. Any pixels with this color will be filled with the control's background instead.
see the standard Popup Parameter description