woo-variation-gallery-slider.php

<?php
// Filters for WooCommerce Variation Product Gallery plugin
// The outermost gallery container
add_filter( 'apaou_gallery_container', function( $selector ) {
    return 'woo-variation-gallery-slider';
} );

// The wrapper where the preview layer is inserted
add_filter( 'apaou_layer_parent', function( $selector ) {
    return 'wvg-single-gallery-image-container';
} );

// The main image selector (for size ratio calculations)
add_filter( 'apaou_gallery_first_image', function( $selector ) {
    return '.woo-variation-gallery-slider img.wp-post-image';
} );

// Thumbnails — WVG uses divs, not a ul/li structure
add_filter( 'apaou_control_container', function( $selector ) {
    return 'woo-variation-gallery-thumbnail-slider';
} );

add_filter( 'apaou_control_list', function( $selector ) {
    return 'div.wvg-gallery-thumbnail-image';
} );

add_filter( 'apaou_control_element', function( $selector ) {
    return 'img';
} );