All of the icons should be either taken directly from VS Code's icon repository, or taken and then modified in some way we require, or at the very least if we are making a completely custom new icon it should look like it belongs to the family.
Icons in Abstract Collection
The icons are available in a live Abstract Collection which gets updated every time we add an icon, or modify an existing one.
It is not necessary to have Abstract account in order to just view the Collections.
Once you launch the Icons, you can enter Inspect mode and check all of the details for each element. Either through third tab when you are viewing details, or directly from the tile itself click "Inspect" button.