Icon background not rendered on Safari

[peterpeterparker]

Awesome tool and specially interesting because it's one of the next thing I would like to try ;)

Anyhow while opening the demo https://jasonwebb.github.io/2d-differential-growth-experiments/playground/ I noticed that the icons' background were not rendered on Safari. Therefore I thought I would tell you about it, just in case ;)

Safari:

Chrome: