Examine source code of SHINE for reddit

{
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon-128.png"
  },
  "content_scripts": [
    {
      "css": [
        "fonts.css",
        "base.css",
        "shine-grid.css",
        "shine-list.css",
        "shine-list-classic.css",
        "shine-default.css",
        "materialdesignicons.min.css"
      ],
      "matches": [
        "*://*.reddit.com/*"
      ],
      "run_at": "document_start"
    },
    {
      "css": [
        "themes/nightmode.css",
        "themes/theme-violet.css",
        "themes/theme-gray.css",
        "themes/theme-black.css",
        "themes/theme-dark.css",
        "themes/theme-blue.css",
        "themes/theme-brown.css",
        "themes/theme-material.css",
        "themes/theme-modernwhite.css"
      ],
      "matches": [
        "*://*.reddit.com/*"
      ],
      "run_at": "document_start"
    },
    {
      "css": [
        "colors/color-red.css",
        "colors/color-orange.css",
        "colors/color-amber.css",
        "colors/color-lime.css",
        "colors/color-greenlight.css",
        "colors/color-teal.css",
        "colors/color-cyan.css",
        "colors/color-blue.css",
        "colors/color-indigo.css",
        "colors/color-pink.css",
        "colors/color-yellow.css",
        "colors/color-purple.css"
      ],
      "matches": [
        "*://*.reddit.com/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "jquery-2.1.4.min.js",
        "base.js"
      ],
      "matches": [
        "*://*.reddit.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "description": "Experience reddit with new modern list and grid view interfaces that focus on bringing the content to you.",
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "manifest_version": 2,
  "name": "SHINE for reddit (unofficial)",
  "permissions": [
    "storage"
  ],
  "short_name": "SHINE",
  "version": "1.6.2resigned1",
  "web_accessible_resources": [
    "jquery.zoom.min.js",
    "shine-grid.js",
    "shine-list.js",
    "shine-shortcuts.js",
    "materialdesignicons-webfont.woff2"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{143d373a-88f7-4eed-8b80-a6ce4ef56015}"
    }
  }
}