Full installation directions are on Visual Studio site, but in short:

• npm install -g vsce
• vsce package - this will generate a sharable .vsix file
• vsce publish <type> - publishes to <publisherID>.extension on VS Code MarketPlace

The vsce package will also run npm scripts before compiling the .vsix file: check (eslint + prettier) and webpack (dist files) if either fail, vsce doesn't report what failed so you will need to re-run these checks manually. Otherwise it will generate a (zip) .vsix file that can be manually installed using code --install-extension vscode-vuln-cost-1.0.0.vsix

To release, ensure the correct type is used in the vsce publish - see Auto-incrementing the extension version for details.

Using VS Code you need to build and watch for changes using npm run dev, then launch the extension in the debugger from VS Code (open command palette, "Debug: select and start debugging", "Launch Extension").

Useful development links

• Colour definitions
• Render options for the decorations