Examine source code of Jira (Quick Access)

{
  "name": "Jira (Quick Access)",
  "description": "Access to Jira is One Click Away or a Keyboard Shortcut (Alt+J) Keep the Jira Tab open if you prefer! Customize Favicon and Toolbar icon!",
  "version": "1.1",
  "manifest_version": 3,
  "permissions": [
    "scripting",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "*://*.atlassian.net/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b770df5e-36eb-4a6c-92ef-9c6ec2903636}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "action": {
    "default_icon": "icons/icon.png",
    "default_title": "Jira (Quick Access)"
  },
  "options_ui": {
    "page": "options/options.html"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+J"
      },
      "description": "Jira (Quick Access)"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.atlassian.net/*"
      ],
      "js": [
        "favicon.js"
      ]
    }
  ]
}