Product option display
In the theme editor, open Theme settings → Product option display.
Controls how colors and sizes are chosen on the product page. Ordinary products keep their normal picker; only products with many options switch to dropdowns.
Settings
Section titled “Settings”High-variant product display (up to 2048 variants)
Section titled “High-variant product display (up to 2048 variants)”- Use dropdowns for products with many variants (default ON): For products with at least Auto-switch threshold (variant count) variants, color, size, and other choices are shown as dropdowns.
- Auto-switch threshold (variant count) (20–500, default 100): Products with at least this many variants are affected. For example, at 100, products with 100 or more variants use dropdowns. Shopify supports up to 2048 variants per product.