This demonstrates packaging custom data into a VS Code extension.

Guide for this sample: https://code.visualstudio.com/api/extension-guides/custom-data-extension.

• contributes.html.customData
• contributes.css.customData

• Run the Run Extension target in the Debug View.
• Open a HTML file. You should receive auto completion and hover information for the HTML entities defined in html.html-data.json.
• Open a CSS file. You should receive auto completion and hover information for the CSS entities defined in css.css-data.json.