Examine source code of Dooksa DevTools

{
  "description": "DevTools extension for debugging Dooksa",
  "manifest_version": 2,
  "name": "Dooksa DevTools",
  "version": "1.0.10",
  "author": "Thomas David",
  "homepage_url": "https://bitbucket.org/dooksa/ds-devtool-extension/src/master/",
  "icons": {
    "48": "icons/icon-48.png",
    "92": "icons/icon-92.png"
  },
  "background": {
    "scripts": [
      "background_scripts/background.js"
    ]
  },
  "permissions": [
    "<all_urls>"
  ],
  "devtools_page": "devtools/devtools-page.html",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{49b3ecbe-949d-4cfb-8926-45e1b1182b41}"
    }
  }
}