Examine source code of ECSY Developer tools

{
  "manifest_version": 2,
  "name": "ecsy-devtools",
  "description": "ECSY developer tool panel",
  "author": "Fernando Serrano",
  "homepage_url": "https://github.com/fernandojsg/ecsy-devtools",
  "version": "0.1.4",
  "icons": {
    "32": "assets/icon_32_detected.png",
    "48": "assets/icon_48_detected.png",
    "64": "assets/icon_64_detected.png",
    "128": "assets/icon_128_detected.png"
  },
  "browser_action": {
    "default_title": "ECSY",
    "default_icon": {
      "32": "assets/icon_32_disabled.png",
      "48": "assets/icon_48_disabled.png",
      "64": "assets/icon_64_disabled.png",
      "128": "assets/icon_128_disabled.png"
    },
    "default_popup": "src/extension/popups/disabled.html"
  },
  "devtools_page": "src/extension/devtools.html",
  "background": {
    "page": "src/extension/background.html",
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "src/extension/contentScript.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "src/content/*.js",
    "src/vendor/*.js",
    "assets/*.svg",
    "assets/*.png",
    "dist/*.svg"
  ],
  "content_security_policy": "style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-eval'; connect-src *; frame-src *; object-src 'self'",
  "permissions": [
    "storage",
    "tabs",
    "file://*/*",
    "http://*/*",
    "https://*/*"
  ]
}