Examine source code of Tab Dashboard

{
  "manifest_version": 2,
  "name": "Tab Dashboard",
  "version": "0.0.3resigned1",
  "description": "Displays useful info to keep focus",
  "author": "Oscar Najera",
  "homepage_url": "https://gitlab.com/Titan-C/tab-dashboard",
  "chrome_url_overrides": {
    "newtab": "public/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b9950bb4-3ff0-4ec3-81f6-dc1737cf4177}"
    }
  }
}