Mute Twitter Avatar

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Mute Twitter Avatar",
  "description": "Restore default avatar for selected Twitter users",
  "version": "0.0.2",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://twitter.com/*"
      ],
      "js": [
        "target/inject.js"
      ],
      "css": [
        "twitter.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "target/background.js"
    ]
  },
  "page_action": {
    "default_icon": "images/icon-19.png",
    "default_popup": "popup.html",
    "scripts": [
      "target/popup.js"
    ]
  },
  "icons": {
    "19": "images/icon-19.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  }
}