GitHub Corners
Phew, GitHub is over ten years old now... and is unquestionably synonymous with open source. After 10 years, those GitHub ribbons are more than overdue for a cleaner, more modern alternative. This is my take.
By using SVG, these corners can be clean and sharp. Any color, and size. As well as have a little character and interactivity!
You can build your own with the SVGs, copy some of the pre-defined code, or just change the fill and color values on the main <svg> element.
Screenshot
You can see the page here... but I really recommend visiting the page to see the small animations that really make them come to life.
License/Acknowledgements
Naturally, these aren't built by GitHub, or endorsed by them.
Copyright (c) 2016 Tim Holman - http://tholman.com