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Template modifier for Joomla! changes history
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3.0:
+ Migrated to namespaced plugin structure (PSR-4, services/provider.php)
+ Implements SubscriberInterface for Joomla 5/6 event system compatibility
+ Switched to WebAssetManager for CSS/JS injection (Joomla 4+ native API)
+ Legacy entry point retained for Joomla 4.0 compatibility
+ Guards against non-HTML document types (JSON API etc.)
+ Requires Joomla 4.0+ and PHP 7.2.5+

2.1:
+ Joomla 6 support, 4 being the minimum requirement
+ Added Head HTML field for injecting arbitrary HTML into the <head> element

2.0:
+ Joomla 3.2/4.0 support, 3.2 is the minimum requirement

1.1:
+ Joomla 3.0 support added
