VS Code allows extensions to contribute different icon themes, and vscode-icons provides a rich set of custom icons that are highly recognizable for a vast array of programming languages.

Once you've tested your final extension code, to use it you just need to package it in a local .vsix file for your own use, as opposed to publishing it to the VS Code Marketplace.

While the most popular extensions in the Visual Studio Code Marketplace are naturally dominated by Microsoft and some other big corporate names like Red Hat, many individual contributors are also ...