What is pibby png?

As an AI language model, I do not have any specific information about a person or organization named "Pibby PNG". However, PNG stands for Portable Network Graphics, which is a file format used for images. It was created as a replacement for the GIF format, which had limitations in its patent and color palette. PNG files support transparency, multiple layers, and a wide range of colors. Many web developers and designers prefer using PNG files for their better clarity and quality.