Hi there,
It should be possible with a bit of PHP snippet and CSS.
Try adding this CSS:
.wpsp-terms-wrapper {
position: absolute;
bottom: 0;
left: 5%;
transform: translateY(50%);
z-index: 9999;
background-color: yellow;
}
.wp-show-posts-image.wpsp-image-center {
overflow: visible;
position: relative;
}
And this PHP code snippet to make it overlay on the image:
add_action('wpsp_inside_image_container',function(){
echo '<div class="wpsp-terms-wrapper">'.get_the_term_list( get_the_ID(), 'category', '', apply_filters( 'wpsp_term_separator', ', ' ) ).'</div>';
});