Examine source code of Search on Bunpro

{
  "manifest_version": 2,
  "name": "Search on Bunpro",
  "description": "Search for the selected grammar on Bunpro; based on Ollie's Search-on-Kitsun.io",
  "version": "1.4",
  "author": "Ollie, Royalnb, Joe Anderson",
  "homepage_url": "https://github.com/12joan/search-on-bunpro",
  "icons": {
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "96": "icons/icon96.png"
  },
  "permissions": [
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d26047b-bc28-4c8b-b164-ba852ec21bdc}"
    }
  }
}