Creates rectangles (same as the Webpack sample plugin).

This demonstrates:

• bundling plugin code using Webpack, and
• using React with TSX.

The main plugin code is in src/code.ts. The HTML for the UI is in src/ui.html, while the embedded JavaScript is in src/ui.tsx.

These are compiled to files in dist/, which are what Figma will use to run your plugin.

To build:

$ npm install
$ npx webpack