Examine source code of Soupcan

{
  "name": "__MSG_extensionName__",
  "version": "0.23.0",
  "manifest_version": 3,
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://bethylamine.github.io/library/browser-extension/",
  "host_permissions": [
    "*://*.twitter.com/*",
    "*://*.x.com/*"
  ],
  "background": {
    "scripts": [
      "database.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "all_frames": true,
      "css": [
        "awesome-notifications/style.css",
        "soupcan.css"
      ],
      "js": [
        "dist/imagehash-web.min.js",
        "awesome-notifications/index.var.js",
        "util.js",
        "media-matching.js",
        "database.js",
        "soupcan.js"
      ],
      "matches": [
        "*://*.twitter.com/*",
        "*://*.x.com/*"
      ]
    }
  ],
  "action": {
    "default_icon": {
      "16": "icon16.png",
      "24": "icon24.png",
      "32": "icon32.png",
      "48": "icon48.png"
    },
    "default_title": "Soupcan",
    "default_popup": "options.html"
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "permissions": [
    "contextMenus",
    "menus",
    "storage",
    "unlimitedStorage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "soupcan@beth.lgbt",
      "strict_min_version": "109.0"
    }
  }
}