Examine source code of myReach Web Clipper

{
  "manifest_version": 2,
  "name": "myReach Web Clipper",
  "version": "1.8.1",
  "description": "Save the things that matter on the web in an interconnected network",
  "author": "MY REACH",
  "short_name": "myReach",
  "background": {
    "scripts": [
      "background/main.js"
    ]
  },
  "permissions": [
    "activeTab",
    "tabs",
    "bookmarks",
    "scripting",
    "webRequest",
    "storage",
    "contextMenus"
  ],
  "host_permissions": [
    "*://api.rea.ch/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_icon": {
      "16": "assets/images/logo/16.png",
      "24": "assets/images/logo/24.png",
      "32": "assets/images/logo/32.png",
      "48": "assets/images/logo/48.png",
      "64": "assets/images/logo/64.png",
      "128": "assets/images/logo/128.png",
      "256": "assets/images/logo/256.png"
    }
  },
  "commands": {
    "open-extension": {
      "suggested_key": {
        "default": "Ctrl+M",
        "mac": "Command+M"
      },
      "description": "Open myReach Extension"
    }
  },
  "externally_connectable": {
    "matches": [
      "https://mobile.rea.ch/*",
      "*://*.rea.ch/*"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "match_about_blank": true,
      "run_at": "document_end",
      "js": [
        "injected/main/import-main.js"
      ],
      "css": [
        "styles/dom.css",
        "assets/icons/main-icons/font/dom.css",
        "assets/icons/node-subtypes/font/dom.css"
      ]
    }
  ],
  "icons": {
    "16": "assets/images/logo/16.png",
    "24": "assets/images/logo/24.png",
    "32": "assets/images/logo/32.png",
    "48": "assets/images/logo/48.png",
    "64": "assets/images/logo/64.png",
    "128": "assets/images/logo/128.png",
    "256": "assets/images/logo/256.png"
  },
  "web_accessible_resources": [
    "styles/base.css",
    "styles/colors.css",
    "styles/fonts.css",
    "styles/inputs.css",
    "styles/keyboard-key.css",
    "styles/layout.css",
    "styles/lists.css",
    "styles/markdown.css",
    "styles/spacings.css",
    "assets/icons/main-icons/style.css",
    "assets/icons/main-icons/styles/override.css",
    "assets/icons/main-icons/common/style.css",
    "assets/icons/main-icons/font/icomoon.css",
    "assets/icons/node-subtypes/style.css",
    "assets/icons/node-subtypes/common/style.css",
    "assets/icons/node-subtypes/font/node-subtype-icomoon.css",
    "assets/release-logs.json",
    "assets/release-logs/*",
    "assets/images/logo/*",
    "assets/images/core/*",
    "assets/icons/main-icons/font/icomoon.eot",
    "assets/icons/main-icons/font/icomoon.woff",
    "assets/icons/main-icons/font/icomoon.woff2",
    "assets/icons/node-subtypes/font/node-subtype-icomoon.eot",
    "assets/icons/node-subtypes/font/node-subtype-icomoon.woff",
    "assets/icons/node-subtypes/font/node-subtype-icomoon.woff2",
    "chunks/*-*.js",
    "injected/main/main.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ff4b6bdc-f972-4593-8c61-90383fb76f5e}"
    }
  }
}