# Project Title An extension that shows how to open and communicate with the panel through messages and menus. ## Development Environment Node.js ## Install ```bash # Install dependent modules npm install # build npm run build ``` ## Usage After enabling the extension, click `Panel -> fsm -> Default Panel` in the main menu bar to open the default panel of the extension. To send a message to the default panel, click `Developer -> fsm -> Send Message to Panel` at the top of the menu. If the default panel exists, the `hello` method of the panel will be called. After clicking `Send Message to Panel`, a message `send-to-panel` will be sent to the extension as defined by `contributions.menu` in `package.json`. When the extension receives the `send-to-panel` message, it will cause the `default` panel to call the `hello` method as defined by `contributions.messages` in `package.json`.