What is a PNG Image?
Unlike the JPEG and GIF format images, the PNG format supports an alpha channel, or the “RGBA” color space.
The alpha channel is added to the three standard color channels red, green, and blue, (RGB) it provides 256 levels of transparency.
JPEG images do not support transparent pixels and GIF images only support completely transparent (not partially opaque) pixels.
The PNG format allows Web developers and graphic designers to fade an image to a transparent background rather than a specific color.
A PNG with an alpha channel can be placed on any color background and maintain its original appearance, even around the edges this allows perfect blending onto any colour page.
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