Just Black HD Wallpapers Color Theme

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Just Black HD Wallpapers Color Theme",
  "version": "1.0.1",
  "description": "Includes HD wallpaper images of the design Just Black on every tab background.",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Just Black HD Wallpapers Color Theme",
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png"
    }
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://home.newtabgallery.com/*"
      ],
      "js": [
        "contentscript.js"
      ]
    }
  ]
}