WordPress Theme Development
WP_DEBUG Configuration
WP_DEBUG_LOG Usage
WP_DEBUG_DISPLAY Settings
SCRIPT_DEBUG for Development
PHP Error Logs
WordPress Debug Logs
Browser Console Errors
Query Monitor
Debug Bar
Log Deprecated Notices
Template Loading Problems
CSS and JavaScript Conflicts
Performance Issues
Compatibility Problems
Cross-Browser Testing
Device Testing
User Testing
Automated Testing
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20. Child Themes
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22. Theme Distribution and Maintenance