manifest.json

{
  "name": "Image Kilobyte Viewer",
  "version": "0.1",
  "manifest_version": 2,
  "description": "Display every images kb directly on screen.",
  "homepage_url": "http://extensionizr.com",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "commands": {
    "fetch_images_size": {
      "suggested_key": {
        "default": "Ctrl+Shift+L",
        "mac": "Command+Shift+L"
      },
      "description": "Fetch all the images size in site"
    }
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "src/bg/build/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "management",
    "https://*/",
    "https://*/*",
    "http://*/*/",
    "http://*/*/"
  ],
  "content_scripts": [{
    "matches": [
      "https://*/",
      "https://*/*",
      "http://*/*/",
      "http://*/*/"
    ],
    "css": [
      "src/inject/inject.css"
    ],
    "js": [
      "src/inject/build/inject.js"
    ]
  }]
}