Color Contrast Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Color Contrast Checker",
  "version": "0.0.1",
  "manifest_version": 2,
  "description": "Section 508 - Testing Web Content Accessibility",
  "minimum_chrome_version": "49",
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "icons": {
    "48": "img/icon_48.png",
    "128": "img/icon_128.png"
  },
  "browser_action": {
    "default_icon": {
      "19": "img/icon_19.png",
      "38": "img/icon_38.png"
    },
    "default_title": "Color Contrast Checker",
    "default_popup": "html/popup.html"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "web_accessible_resources": [
    "inc/jquery-2.1.0.min.js",
    "inc/jquery.scrollstop.js",
    "edropper2.js",
    "inject/anchor-cursor-default.css",
    "inject/anchor-cursor-crosshair.css",
    "inject/edropper2.css"
  ]
}