Philly Dusk wallpaper — the Philadelphia skyline at dusk seen across the river
Open display · the wallpaper itself · 2670 × 1878
Philly Dusk — simulated reframe of the same wallpaper on the closed Duo cover display
Closed display · reframe preview — simulation

About the closed preview: it is a simulation, cropped from the exact composed wallpaper shown in the open frame beside it. Your Duo takes the one wallpaper you set and reframes that same artwork when the phone is closed — there is no second file. The exact region shown when closed can be positioned in the phone’s wallpaper editor, so your closed view may crop slightly differently from this preview.