The context menus use CSS selectors so you should be able to target this specifically on each platform.

So:

```coffee
'.platform-darwin .tree-view.full-menu':
  'Show in Finder': 'tree-view:show-in-file-manager'

'.platform-win32 .tree-view.full-menu':
  'Open in Explorer': 'tree-view:show-in-file-manager'

'.platform-linux .tree-view.full-menu':
  'Show in File Manager': 'tree-view:show-in-file-manager'
```