An SVGZ file is a Scalable Vector Graphics (.SVG) file compressed with gzip compression. It contains graphics data in an XML format and supports graphical elements including transparency, gradients, animations, and filters.
PNG, Portable Network Graphics, refers to a type of raster image file format that use loseless compression. This file format was created as a replacement of Graphics Interchange Format (GIF) and has no copyright limitations. However, PNG file format does not support animations. PNG file format supports loseless image compression that makes it popular among its users. With the passage of time, PNG has evolved as one of the mostly used image file format