Examine source code of Save Tabs

{
  "manifest_version": 2,
  "name": "Save Tabs",
  "version": "1.0.1",
  "description": "Export and Import Tabs.",
  "homepage_url": "https://github.com/karna98/Save-Tabs",
  "developer": {
    "name": "Vedant Wakalkar",
    "url": "https://karna98.github.io"
  },
  "icons": {
    "16": "icons/Save_Tabs_16.png",
    "32": "icons/Save_Tabs_32.png",
    "48": "icons/Save_Tabs_48.png",
    "64": "icons/Save_Tabs_64.png",
    "96": "icons/Save_Tabs_96.png",
    "128": "icons/Save_Tabs_128.png"
  },
  "permissions": [
    "tabs",
    "downloads",
    "storage"
  ],
  "browser_action": {
    "default_icon": {
      "16": "icons/Save_Tabs_16.png",
      "32": "icons/Save_Tabs_32.png",
      "48": "icons/Save_Tabs_48.png",
      "64": "icons/Save_Tabs_64.png",
      "96": "icons/Save_Tabs_96.png",
      "128": "icons/Save_Tabs_128.png"
    },
    "default_title": "Save Tabs"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "sidebar_action": {
    "default_icon": {
      "16": "icons/Save_Tabs_16.png",
      "32": "icons/Save_Tabs_32.png",
      "48": "icons/Save_Tabs_48.png",
      "64": "icons/Save_Tabs_64.png",
      "96": "icons/Save_Tabs_96.png",
      "128": "icons/Save_Tabs_128.png"
    },
    "default_title": "Save Tabs",
    "default_panel": "saveTab.html"
  }
}