Zipkin 3.2

Zipkin 3.2 improves accessibility blindness and language controls.

Before, there was no way to control "dark mode". Also, the color scheme lacked contrast and other features to support vision accessibility. @giaroc's first commit to zipkin knocked this out of the park, resulting in an easier to read and control UI.

before:

after:

Full Changelog: https://github.com/openzipkin/zipkin/compare/3.1.1..3.2.0