# Prompt 11: Enhanced Syntax Highlighting

Improve syntax highlighting and template support:

1. Configure highlight.js for markdown and code block detection
2. Special highlighting for {{template_variables}} with different color
3. Support nested code blocks with language detection
4. Line numbers option for code blocks
5. Copy button for individual code blocks
6. Template variable validation - highlight invalid/unclosed variables
7. Preview pane should closely match how prompts appear in AI tools

Add a template variable sidebar that lists all detected variables in the prompt.