In the realm of web animation, SVG has a number of completely unique methods to move and manipulate elements. Perhaps the most spectacular of these is “morphing”: the ability to move and stretch one element seamlessly into another.
Simple, often geometric, and deployed at an increasing number of varied sizes, favicons would seem to be the perfect candidate for the SVG format. Unfortunately, browser support for SVG favicons has been lacking until very recently. Firefox 41 now supports them, as does Safari 9 on desktop and mobile (with some provisions), but IE / Edge and Chrome continue to ignore the format, at least for now. However, that situation could (and hopefully will) change soon, so it’s worth taking a moment to explore the possibilities and syntax of SVG favicons, preparing your site for when the time comes.