BYOB (Bring your Own Background)

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "BYOB (Bring your Own Background)",
  "short_name": "BYOB",
  "version": "1.3.4",
  "version_name": "1.3.4 Public Release",
  "description": "This app allows you to 'cover up' the wallpaper the school forces on you with one of your own choosing. You're welcome",
  "author": "Nate Arkin and Eric Udlis",
  "manifest_version": 2,
  "minimum_chrome_version": "31",
  "app": {
    "background": {
      "scripts": [
        "background.js"
      ]
    }
  },
  "permissions": [
    {
      "fileSystem": [
        "retainEntries",
        "directory",
        "write"
      ]
    },
    "storage"
  ],
  "file_handlers": {
    "text": {
      "types": [
        "image/*"
      ]
    }
  },
  "icons": {
    "48": "Icon48.png",
    "96": "Icon96.png",
    "128": "Icon.png"
  }
}