TBA: Implement about:tor
Onion circles implemeted in html + css:
https://trac.torproject.org/projects/tor/attachment/ticket/25696/onion_circles_pattern.html
Onion circles implemented in svg:
https://trac.torproject.org/projects/tor/attachment/ticket/25696/onion_circles_pattern.py
.png and .svg version were ready to be exported at https://marvelapp.com/5981a4b/screen/44384308/handoff
more info: https://trac.torproject.org/projects/tor/ticket/25696#comment:15