Image Styles

Philosophy: Configuration over code. Image styles and responsive image styles are config entities defined via YAML. The preferred workflow is config management, export/import, and recipes.

I Need To...

Task	Guide
Understand when to use image styles vs responsive images	Image System Overview
Know the full YAML config schema for image styles	Image Style Config Schema
Configure resize, scale, crop, or conversion effects	Core Image Effects
Create an image style via YAML config	Creating Image Styles via Config
Set up a responsive image style with breakpoints	Responsive Image Style Config
Define breakpoints in my theme	Breakpoint Configuration
Configure image field formatters	Image Field Formatters
Decide between art direction and resolution switching	Art Direction vs Resolution Switching
Optimize images with WebP and AVIF	WebP & AVIF Optimization
Generate derivatives or create custom effects programmatically	Programmatic Image Operations
Export image styles or create a recipe	Config Export & Recipes
Follow naming conventions and performance patterns	Best Practices & Patterns
Avoid common mistakes	Anti-Patterns & Common Mistakes
Secure image derivatives and optimize performance	Security & Performance
Find key classes and interfaces	Code Reference Map
Check sources and version history	Sources & Maintenance