I installed Visual Studio but it doesn't show the icon of the app. So I was following this to set an icon.
When I go into /usr/share/applications I see the .desktop file of Visual Studio Code . But as I don't have access I can't edit it. So I opened terminal and tried to open it with sudo gedit. So for that first I tried to check the name with ls. But it doesn't list down the icon.

Why is that? How can I edit .desktop of vscode to set the icon?