uTweetdeck

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "uTweetdeck",
  "version": "1.3",
  "manifest_version": 2,
  "description": "Removes profile pictures, shrinks other images, and customizable Home column width for tweetdeck.twitter.com",
  "browser_action": {
    "default_icon": "broom-icon.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://tweetdeck.twitter.com/"
      ],
      "js": [
        "contentscript.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "cleanertweetdeck.js"
  ]
}