Examine source code of GitLab Dashboard

{
  "manifest_version": 2,
  "name": "GitLab Dashboard",
  "description": "This extension shows a dashboard for all projects in GitLab",
  "version": "1.4.4resigned1",
  "icons": {
    "16": "icons/gitlab-logo16.png",
    "24": "icons/gitlab-logo24.png",
    "32": "icons/gitlab-logo32.png",
    "48": "icons/gitlab-logo48.png",
    "128": "icons/gitlab-logo128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/gitlab-logo16.png",
      "24": "icons/gitlab-logo24.png",
      "32": "icons/gitlab-logo32.png",
      "48": "icons/gitlab-logo48.png"
    }
  },
  "background": {
    "scripts": [
      "scripts/start.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "settings.html",
    "browser_style": true
  },
  "permissions": [
    "storage"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{6021c29b-2d0c-422a-9674-b797ff26851f}"
    }
  }
}