Examine source code of JiraPatch

{
  "name": "__MSG_appName__",
  "version": "0.0.6",
  "manifest_version": 2,
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "browser_action": {
    "default_popup": ""
  },
  "permissions": [
    "webRequestBlocking",
    "webRequest",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "script.js"
    ]
  },
  "icons": {
    "16": "images/Jira_logo_16.png",
    "48": "images/Jira_logo_48.png",
    "128": "images/Jira_logo_128.png"
  }
}