Examine source code of Priority tabs

{
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "58.0a1",
      "id": "{99b5ee2a-9a97-41a2-b700-7a6c0c68afb8}"
    }
  },
  "description": "A list of priority tabs",
  "homepage_url": "https://github.com/daniel12fsp/priority-tabs-extension",
  "manifest_version": 2,
  "name": "Priority tabs",
  "permissions": [
    "tabs"
  ],
  "version": "1.0.2",
  "sidebar_action": {
    "default_title": "Priority tabs",
    "default_panel": "sidebar/index.html",
    "default_icon": "icon.svg"
  },
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icon.svg",
      "32": "icon.svg"
    }
  },
  "background": {
    "scripts": [
      "background/background.js"
    ]
  }
}