Examine source code of Notro Emotes

{
  "manifest_version": 2,
  "name": "Notro Emotes",
  "description": "Adds a browser sidebar allowing you to easily search and import emotes for discord",
  "version": "1.0.2",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "54.0a1",
      "id": "notro_search@miguri.com"
    }
  },
  "sidebar_action": {
    "default_icon": "icons/MinaSerchLogo_218.png",
    "default_title": "Notro Search",
    "default_panel": "sidebar/panel.html"
  },
  "icons": {
    "48": "icons/MinaSerchLogo_48.png",
    "96": "icons/MinaSerchLogo_96.png",
    "218": "icons/MinaSerchLogo_218.png"
  },
  "permissions": [
    "*://*.discord.com/*",
    "storage",
    "tabs",
    "activeTab",
    "clipboardWrite"
  ],
  "commands": {
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Ctrl+Alt+E"
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.discord.com/*"
      ],
      "js": [
        "borderify.js"
      ]
    }
  ]
}