manifest.json

{
    "manifest_version":2,
    "name": "Auto Sci-Hub",
    "version": "2.0",

    "description": "Auto-modify the url to load Sci-Hub page with your article",

    "permissions": [
        "activeTab",
        "contextMenus",
        "storage"
    ],
    "options_ui": {
      "page": "options.html",
      "browser_style": true,
      "chrome_style": true
    },
    "background": {
      "scripts": ["shRedirect.js"]
    },
    "icons": {
      "16": "icons/logo-16.png",
      "24": "icons/logo-24.png",
      "32": "icons/logo-32.png",
      "64": "icons/logo-64.png",
      "128": "icons/logo-128.png",
      "256": "icons/logo-256.png"
    },
    "browser_action": {
      "default_icon": {
          "16": "icons/icon-16.png",
          "19": "icons/icon-19.png",
          "24": "icons/icon-24.png",
          "32": "icons/icon-32.png",
          "38": "icons/icon-38.png"
      },
      "default_title": "Open in Sci-hub"
    }
}