This directory contains WordPress core CSS engine components and styling utility functions. Manages theme styling, dynamic style generation, and admin style integration.
style-engine.php
Core style processing logic
dynamic-styles.js
Runtime CSS generation
theme-customizer.css
Theme styling integration
editor-styles.php
Gutenberg editor styling
cache-engine.js
CSS cache management
legacy-styles.js
Classic editor style bridge
Core styling system directory. Modifications should be done with theme development tools.