Change content color

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Change content color",
  "description": "Double click any region in a webpage where you want to make its color warm.",
  "version": "1.2",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "file://*/*",
        "ftp://*/*"
      ],
      "js": [
        "jquery-1.11.3.js",
        "bg_change.js",
        "background.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "background2.js"
    ],
    "persistent": false
  },
  "page_action": {
    "default_title": "Change content color",
    "default_icon": "paint-brush-128.png"
  },
  "manifest_version": 2,
  "icons": {
    "64": "paint-brush-128.png"
  }
}