Child Theme Wizard

The Child Theme Wizard lets you create a new child theme without the need for additional tools, right from within the WordPress admin interface. Once activated you can find it under Tools - Child Theme Wizard. Specify a parent theme, customise options such as title and description and click Create Child Theme. Upon success you will find your new theme under Appearance - Themes. You have the option to include GPL License Terms if you wish. The Wizard will automatically create a thumbnail too. To find out more about child themes and why they are useful, please read the WordPress Developer Docs on Child Themes.

1.5

• Security: added CSRF nonce protection to the creation form
• Security: parent theme selection now validated server-side against installed themes
• Security: all HTML output is now properly escaped
• Fixed: incorrect admin URL argument that broke the "Try again" link
• Fixed: missing closing tag
• Fixed: thumbnail copy now uses the filesystem path instead of an HTTP URL, fixing failures on hosts with allow_url_fopen disabled
• Fixed: uninstall.php guard order corrected per WordPress standards
• Replaced direct PHP file functions (fopen, fwrite, fclose, mkdir, copy) with WP_Filesystem API
• Added PHP 8.2 return type declarations
• Removed unused ctw_testing() function
• Form layout updated to use WordPress standard form-table markup
• Tested with WordPress 7.0

1.4

• Defined the previously undefined variable $parent_style (thanks, Marcin!)
• Updated links to WordPress Dev Docs

1.3

• Tested compatibility with WordPress 5.1
• Updated link to Codex
• Added version query as suggested in Codex as of 2019

1.2

• Corrected a spelling mistake (thanks, Cory!)

1.1

• The parent theme stylesheet is now enqueued via functions.php

1.0

• Initial release