Classic Theme Media and Images

Use this when adding or reviewing featured images, attachment images, custom image sizes, responsive image attributes, image accessibility, or theme asset images in a classic PHP theme.

When to Use This Skill

• Adding featured image support.
• Rendering thumbnails in archives, cards, heroes, or singular templates.
• Registering custom image sizes.
• Replacing hand-built <img> tags with WordPress image functions.
• Fixing layout shift, oversized images, missing alt text, or broken responsive image output.

Enable Featured Images

Enable post thumbnails during theme setup.

add_action( 'after_setup_theme', 'mytheme_setup' );