NextGEN Gallery Pro is unusual among gallery plugins because it stores its data in dedicated tables rather than wp_posts: ngg_gallery for galleries, ngg_pictures for individual image rows (file, alt text, description, exclude flag, view count), and ngg_album for album bundles. Pro adds Ecommerce and Proofing modules with their own tables for orders, pricelists, and proofing sessions, plus per-image pricelist references. The default admin shows each table on its own screen with limited cross-filtering.

SleekView Charts reads the ngg tables together. A Number card counts total galleries and total pictures. A Pie splits pictures by alt-text coverage or exclude flag. A Bar ranks galleries by picture count or by Pro ecommerce orders attached. An Area card traces gallery growth or view trend across the year. The Pro pricelist and proofing tables become additional chart dimensions when active.

Every card reads through the same custom tables NextGEN Pro maintains, so the lightbox, the display types, the Pro ecommerce checkout, and any cache layer continue to behave normally. The dashboard sits next to SleekView's table view of the same dataset, with shared filters and sources.

NextGEN Gallery Pro is one of the oldest and most data-rich gallery plugins in the WordPress ecosystem, and the custom-table architecture it ships is its greatest asset and biggest visibility gap together. The ngg_gallery, ngg_pictures, and ngg_album tables hold every piece of information a content team needs, plus the Pro Ecommerce and Proofing modules add pricelists and proofing sessions on top, but the default admin lives on per-screen views and gives no place to combine those tables into a dashboard. SleekView Charts reads ngg_gallery, ngg_pictures, ngg_album, and the Pro module tables together and turns the answers into chart cards.

Total pictures, alt-text coverage, top galleries by picture count, monthly cadence, ecommerce coverage all on one screen. The plugin keeps rendering galleries and managing Pro modules. The team finally has the cross-table dashboard the per-screen admin was never built to show.