pt 

AssignTo (TPngBackgroundColorFormat26)

pt 

GetChunkSize (TCustomPngBackgroundColor)

pt 

GetChunkSize (TPngBackgroundColorFormat26)

LoadFromStream (TCustomPngBackgroundColor)

LoadFromStream (TPngBackgroundColorFormat26)

SaveToStream (TCustomPngBackgroundColor)

SaveToStream (TPngBackgroundColorFormat26)