Examine source code of ilo

{
  "manifest_version": 2,
  "name": "ilo",
  "version": "1.1",
  "description": "Adds a context menu item to send text to ilo",
  "homepage_url": "https://0xdstn.site/projects/ilo",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f931734a-2cda-40d2-847b-c9e6d9919ca3}"
    }
  }
}