Examine source code of AccessibilityPlus

{
  "manifest_version": 3,
  "name": "AccessibilityPlus",
  "author": "kgsensei",
  "description": "An extension designed to help dyslexic people read text on websites.",
  "version": "2.1",
  "action": {
    "default_icon": "icon_500.png",
    "default_popup": "dash.html"
  },
  "icons": {
    "128": "icon_128.png",
    "500": "icon_500.png"
  },
  "permissions": [
    "scripting",
    "activeTab",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "<all_urls>",
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "css": [
        "resources/ap-font-import.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "*://*/*"
      ],
      "resources": [
        "resources/dyslexia.woff"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "accessibilityplus@kgsensei.dev"
    }
  }
}