Examine source code of Deluminate177

{
  "background": {
    "scripts": [
      "common.js",
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "deluminate-128.png",
    "default_popup": "popup.html",
    "default_title": "Deluminate (Shift+F11)"
  },
  "commands": {
    "command_toggle_global": {
      "description": "Toggle Deluminate on/off"
    },
    "command_toggle_site": {
      "description": "Toggle inversion on a site"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "deluminate.js"
      ],
      "match_about_blank": true,
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start"
    }
  ],
  "description": "Invert the luminance of a website to make it easier on the eyes.",
  "icons": {
    "128": "deluminate-128.png"
  },
  "manifest_version": 2,
  "name": "Deluminate",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "<all_urls>",
    "tabs"
  ],
  "version": "0.7.7",
  "web_accessible_resources": [
    "deluminate.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f5d0610e-5f9c-437f-8307-c2e3dc49da02}"
    }
  }
}