Scalable Vector Graphics (SVG) is an XML-based vector image format (and very flexible in that images can be searched, indexed, scripted, and compressed) and an open standard developed since 1999 by the World Wide Web Consortium (W3C) and is supported by the major browsers such as Mozilla Firefox, Internet Explorer 9-10, Google Chrome, Safari and Opera.
SVG images allow three types of graphic objects: vector graphics, raster graphics, and text. Graphical objects, such as PNG and JPEG raster images are easily grouped modified, styled transformed and composed into different rendered objects and can have their behaviors easily modified using XML text files, therefore using text editiors is one way of creating SVG images.