App Store carousels look most polished when the background runs unbroken across the panels. In Screenshotify the global background is one logical gradient/pattern/image; the editor slices it per panel at render time so what you see in the studio is exactly what you'll get when the App Store shows them side by side. Per-panel overrides are available when a single panel needs to break the pattern.
Any element — text, image, device, SVG — can be flagged as a "row layer" via a toggle. Row layers exist outside individual panels and stretch across all of them, kept as one editable object. Move the layer once, and it moves across every panel. Particularly handy for a long horizontal gradient bar, a wave that crosses panels, or a single elongated device that spans the carousel.
Each panel has hover controls for duplicate / reorder / delete. The currently selected panel gets a small z-index boost so resize and rotate handles for layers near the edge stay on top of adjacent panels.
Default is 1242 × 2688 (App Store 6.5"). Switch the export format in the header to recompute on the fly: 6.9" (1320×2868), 6.7" (1290×2796), 5.5" (1242×2208), iPad 13" (2064×2752), iPad 11" (1668×2388), Pixel 8 Pro (1344×2992), Galaxy S24 (1080×2340).