SVG

Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium (W3C) since 1999.

The biggest advantages to using SVG are the following:

• It can be well compressed and has small size;
• you can scale it to pretty much any size without making the image blurry;
• good-looking on retina displays;
• you can control its design (such as interactivity and filters).