Examine source code of Cacher

{
  "name": "Cacher",
  "version": "1.2.0",
  "description": "Save code snippets from anywhere on the web. Companion extension to Cacher, the code snippet organizer for pro developers.",
  "manifest_version": 2,
  "permissions": [
    "*://*/*",
    "contextMenus",
    "notifications",
    "storage"
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://app.cacher.test/*",
        "*://app.cacher.io/*"
      ],
      "js": [
        "scripts/auth-flow.js"
      ]
    },
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "scripts/content.js"
      ],
      "css": [
        "styles/content.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup/index.html",
    "default_title": "Cacher",
    "default_icon": {
      "16": "images/icon16.png",
      "24": "images/icon24.png",
      "32": "images/icon32.png"
    }
  },
  "icons": {
    "16": "images/icon16.png",
    "24": "images/icon24.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{97dae966-bafc-4a15-8fb1-db16ee3e084b}",
      "strict_min_version": "57.0"
    }
  }
}