Examine source code of Instant Flash Cards

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "short_name": "Flash Cards",
  "version": "0.9.6",
  "homepage_url": "https://www.coffeeanfun.com/flash-cards/",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "flash@coffeeandfunc.com",
      "strict_min_version": "114.0"
    }
  },
  "default_locale": "en",
  "icons": {
    "16": "assets/images/icon/16.png",
    "32": "assets/images/icon/32.png",
    "48": "assets/images/icon/48.png",
    "64": "assets/images/icon/64.png",
    "128": "assets/images/icon/128.png",
    "512": "assets/images/icon/512.png"
  },
  "action": {
    "default_icon": {
      "16": "assets/images/icon/16.png",
      "32": "assets/images/icon/32.png",
      "48": "assets/images/icon/48.png",
      "64": "assets/images/icon/64.png",
      "128": "assets/images/icon/128.png",
      "512": "assets/images/icon/512.png"
    },
    "default_title": "__MSG_appName__",
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "*://*/*",
        "https://*/*"
      ],
      "all_frames": false,
      "js": [
        "scripts/content.js"
      ]
    }
  ],
  "sidebar_action": {
    "default_icon": {
      "16": "assets/images/icon/16.png",
      "32": "assets/images/icon/32.png"
    },
    "default_title": "Flash Cards",
    "default_panel": "sidebar.html",
    "open_at_install": false
  },
  "permissions": [
    "activeTab",
    "storage",
    "alarms",
    "sidePanel"
  ],
  "optional_permissions": [
    "<all_urls>"
  ],
  "host_permissions": [
    "http://*/*",
    "*://*/*",
    "https://*/*",
    "<all_urls>"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "*://*/*"
      ],
      "resources": [
        "notes.html",
        "dictionary.html",
        "editor.html",
        "index.html",
        "pdf.html",
        "readinglist.html",
        "settings.html",
        "/scripts/widget.js",
        "/assets/fonts/opendyslexic/bold.otf",
        "/assets/fonts/opendyslexic/regular.otf",
        "/assets/fonts/opendyslexic/italic.otf",
        "/assets/fonts/lexend/lexend.woff2",
        "/assets/fonts/lexend/lexend-deca.woff2",
        "/assets/fonts/lexend/lexend-exa.woff2",
        "/assets/fonts/lexend/lexend-giga.woff2",
        "/assets/fonts/lexend/lexend-tera.woff2",
        "/assets/fonts/lexend/lexend-mega.woff2",
        "/assets/fonts/lexend/lexend-meta.woff2",
        "/assets/fonts/lexend/lexend-peta.woff2",
        "/assets/fonts/lexend/lexend-zetta.woff2",
        "/assets/fonts/sign/amercian.otf",
        "/assets/fonts/lora/regular.otf",
        "/assets/fonts/lora/italic.otf",
        "/assets/fonts/lora/bold.otf",
        "/assets/images/base/welcome.png",
        "/assets/images/base/support.png",
        "/assets/images/cursors/pointer/80.png",
        "/assets/images/cursors/pointer/96.png",
        "/assets/images/cursors/pointer/112.png",
        "/assets/images/cursors/pointer/128.png",
        "/assets/images/others/pixel.png",
        "/assets/images/others/Jcrop.gif",
        "/assets/images/cursors/hand/80.png",
        "/assets/images/cursors/hand/96.png",
        "/assets/images/cursors/hand/112.png",
        "/assets/images/cursors/hand/128.png",
        "/assets/images/logo/full.png",
        "/assets/images/logo/128.png",
        "/assets/images/full.png",
        "/assets/styles/blind/index.css",
        "/assets/styles/fonts/app.css",
        "/assets/styles/fonts/lora.css",
        "/assets/styles/fonts/lora-bold.css",
        "/assets/styles/fonts/lora-italic.css",
        "/assets/styles/fonts/comic-sans.css",
        "/assets/styles/fonts/lexend.css",
        "/assets/styles/fonts/lexend-deca.css",
        "/assets/styles/fonts/lexend-exa.css",
        "/assets/styles/fonts/lexend-giga.css",
        "/assets/styles/fonts/lexend-tera.css",
        "/assets/styles/fonts/lexend-mega.css",
        "/assets/styles/fonts/lexend-meta.css",
        "/assets/styles/fonts/lexend-peta.css",
        "/assets/styles/fonts/lexend-zetta.css",
        "/assets/styles/fonts/opendyslexic.css",
        "/assets/styles/fonts/opendyslexic-italic.css",
        "/assets/styles/fonts/opendyslexic-bold.css",
        "/assets/styles/fonts/arial.css",
        "/assets/styles/fonts/gothic.css",
        "/assets/styles/fonts/tahoma.css",
        "/assets/styles/fonts/trebuchet.css",
        "/assets/styles/fonts/verdana.css",
        "/assets/styles/fonts/bookman.css",
        "/assets/styles/fonts/courier.css",
        "/assets/styles/fonts/georgia.css",
        "/assets/styles/orc/content.css",
        "/assets/styles/reader-mode/light.css",
        "/assets/styles/fonts/helvetica.css",
        "/assets/styles/fonts/impact.css",
        "/assets/styles/fonts/palatino.css",
        "/assets/styles/fonts/times.css",
        "/assets/styles/fonts/sign.css",
        "/assets/scripts/immersive-reader.js",
        "/scripts/google.js",
        "/assets/scripts/traineddata/eng.traineddata.gz",
        "/assets/scripts/worker.min.js",
        "scripts/extra/traineddata/eng.traineddata.gz",
        "scripts/extra/worker.min.js"
      ]
    }
  ]
}