]                         -> no explicit dimensions
            [[/assets/img/pic.jpg::img|800x600]]                 -> width=800 height=600
            [[/assets/img/pic.jpg::img|w=800,h=600]]             -> width=800 height=600
            [[/assets/img/pic.jpg::img|w=800]]                   -> width only
            [[/assets/img/pic.jpg::img|w=800,h=auto]]            -> height auto (omitted)
            {%- endcomment -%}
            {%- assign img_parts = title | split:'|' -%}
            {%- assign im