This issue needs to be addressed before VS Code 1.56 release.

The SVG icon is broken on VS Code Insiders build since the version:

Version: 1.56.0-insider
Commit: 01466cf692c3e54f0eeb82ef0539a42391f185de
Date: 2021-04-12T05:16:52.719Z

Our icons must follow these guidelines:

Currently, our SVG icons are 512x512.