Transparent PNG image (with TImageList) in a TMainMenu

Question

I want to load a PNG with transparent background in a TImageList and use it in a TMainMenu (via TAction).
However, in Delphi the background is just black. Is PNG support onl

Answer 1

Set the following property values for TImageList: DrawingStyle: dsTransparent ColorDepth: cd32Bit

Application->Enable runtime themes:= true; (Proj Settings).

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Update for Delphi Rio:

TImageList must have:

• BkGColor = clNone
• BlendColor = clNone,
• ColorDepth = cd32bit,
• DrawingStyle = dsTransparent (or) dsNormal,
• Masked = true.

The images can be loaded from a PNG with transparent bkg color.

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Note: Editing some properties of TImageList will delete (without any notice) all existing images in your list. Backup your images first.