The 1400x560 marquee tile is the banner Chrome Web Store uses when featuring an extension in editorial collections or category spotlights. Without it, your extension is ineligible for featured placement — one of the highest-traffic discoverability surfaces in the store. Extensions in featured sections see significantly higher install rates than those found only through search. While not a hard submission blocker, the chrome-cws-marquee-tile recommendation is followed by every extension that achieves meaningful organic growth through store discovery.
Low because a missing marquee tile forfeits editorial featuring opportunities but does not block submission or break functionality.
Create a 1400x560 pixel promotional banner highlighting your extension's primary value proposition. Save it to screenshots/marquee.png.
screenshots/
marquee.png (1400x560)
Design guidance: include the extension icon, name, and one-sentence benefit. Use a color scheme that matches your icon. Tools like Figma (free) have Chrome Web Store marquee templates. The image must be PNG or JPG; keep file size under 1MB. Upload in the store dashboard under Store Listing > Promotional Images.
ID: extension-store-readiness.screenshot-docs.marquee-tile
Severity: low
What to look for: Count every image file in the store assets directory. Check for a promotional tile image at dimensions 1400x560 pixels. This is the large banner displayed at the top of the extension's store listing.
Pass criteria: At least 1 promotional tile image exists at exactly 1400x560 pixels (or documented as a planned asset).
Fail criteria: 0 promotional tiles at 1400x560 found.
Skip (N/A) when: Never — marquee tiles are recommended for better visibility in the store.
Detail on fail: "No marquee promotional tile (1400x560) found in store assets".
Remediation: Create a promotional tile at 1400x560 pixels:
1. Use a design tool (Figma, Canva, Adobe Express)
2. Create a 1400x560 image highlighting your extension's main benefit
3. Include your extension name and value proposition
4. Save as screenshots/marquee.png
5. Add to store listing assets