Fix OST representation in MetaMask #723
Description
This is what OST looks like in MetaMask at the moment:
The root is probably a rectangular SVG that is higher than it is wide.
I propose to change the icon to be a square PNG file.
You need to create a PR to https://github.com/MetaMask/eth-contract-metadata to update the logo.
References #682
More screenshots:
