PngComponents2 provides VCL button components TPngSpeedButton2 and TPngBitBtn2 as an extension to the original PngComponents. (This means this package requires the PngComponents suite; ...actually the only reason to require it is because it needs TPngImageList)
Has more properties such as
- Overlay image,
- extended Options property (pngBlendOnEnabled, pngGrayscaleOnEnabled, pngBlendNotHovering, pngGrayscaleNotHovering) and
- advanced Windows Theming.
Here is a screen shot of the Object Inspector where the new properies are highlighted: