Examine source code of Anthracite

{
  "manifest_version": 3,
  "name": "Anthracite",
  "short_name": "Anthracite",
  "version": "0.1.1",
  "description": "Tasteful, universal dark mode with neutral charcoal surfaces.",
  "author": "psyopgirl",
  "permissions": [
    "storage",
    "contextMenus",
    "scripting"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "fallback.js",
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "page-proxy.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "commands": {
    "toggle-anthracite": {
      "suggested_key": {
        "default": "Alt+Shift+A"
      },
      "description": "Toggle Anthracite globally"
    }
  },
  "action": {
    "default_title": "Anthracite",
    "default_area": "navbar",
    "default_icon": {
      "16": "icons/on-16.png",
      "32": "icons/on-32.png",
      "64": "icons/on-64.png"
    }
  },
  "icons": {
    "32": "icons/brand-32.png",
    "48": "icons/brand-48.png",
    "64": "icons/brand-64.png",
    "96": "icons/brand-96.png",
    "128": "icons/brand-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "anthracite@anthracite.zip",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}