/* =============================================================================
VARIANT GALLERY FILTER (LORENZO THEME)
=============================================================================
HOW IT WORKS:
1. DEFAULT MAPPING: The script parses image filenames for the "-in-[color]-"
pattern. (Example: "...-in-umber-front.jpg" matches variant "Umber").
2. MANUAL OVERRIDE: If the filename doesn't match, add the variant name
inside brackets to the image ALT TEXT in Shopify.
Format: "Description (Variant Name)" -> Example: "Detail view (Umber)"
3. LOGIC: On load and on swatch click, it extracts the variant name from the
"data-option-value" attribute and filters the ".product-thumbnails__item" list.
=============================================================================
*/
