`TRasterImage`
	ro	Canvas
		BitmapHandle
		Masked
		MaskHandle
		PixelFormat
	ro	RawImage
	ro	ScanLine
		TransparentColor
		TransparentMode

`TGraphic`
	ro	Empty
		Height
		Modified
	ro	MimeType
		Palette
		PaletteModified
		Transparent
		Width

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