fromJSON loads up sketch but `path` objects are filled
I took JSON from http://tbolis.github.io/showcase/react-sketch/ . Looks like this:
<img width="867" alt="Screen Shot 2020-12-13 at 6 54 00 PM" src="https://user-images.githubusercontent.com/32850517/102027805-929a0480-3d74-11eb-8bb4-b74d699c1284.png">

And did `fromJSON()`, getting the following:
<img width="927" alt="Screen Shot 2020-12-13 at 6 52 27 PM" src="https://user-images.githubusercontent.com/32850517/102027793-8746d900-3d74-11eb-974b-ad72a9a81117.png">

What is making `path` appear filled on load ?