Shields.io is a service for badges and they deliver all badges as SVG, as vector graphics. That has the advantage that it scales much better than PNG and JPG. The SVG badges look awesome! Even on Retina displays!
The old routes to the old VersionEye badges are still working! You have nothing to do. Instead of PNG VersionEye now simply returns an SVG file.
Let me know what you think about the new badges.