Examine source code of color helper

{
  "manifest_version": 3,
  "name": "color helper",
  "version": "0.0.8",
  "description": "Assistive extension for people with color vision deficiency",
  "homepage_url": "https://github.com/Mtillmann/color-helper-extension",
  "icons": {
    "16": "/icons/16x16.png",
    "19": "/icons/19x19.png",
    "38": "/icons/38x38.png",
    "48": "/icons/48x48.png",
    "128": "/icons/128x128.png"
  },
  "action": {
    "default_icon": {
      "16": "/icons/16x16.png",
      "19": "/icons/19x19.png",
      "38": "/icons/38x38.png",
      "48": "/icons/48x48.png",
      "128": "/icons/128x128.png"
    },
    "default_title": "color helper",
    "default_popup": "popup/index.html"
  },
  "background": {
    "scripts": [
      "background/index.js"
    ]
  },
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "node_modules/@mtillmann/colors/dist/data/binaryLookup.bin",
        "node_modules/@mtillmann/colors/dist/data/binaryLookupMaps.json",
        "node_modules/@mtillmann/colors/dist/data/colorMap.json",
        "node_modules/@mtillmann/colors/dist/data/lookupCube.json"
      ]
    }
  ],
  "commands": {
    "color-helper": {
      "description": "Analyze shades and colors",
      "suggested_key": {
        "default": "Alt+C"
      }
    }
  },
  "permissions": [
    "storage",
    "scripting",
    "activeTab",
    "contextMenus"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "color-helper@mtillmann.github.io",
      "strict_min_version": "120.0"
    }
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "options_ui": {
    "page": "/options/index.html"
  }
}