Chrome Web Store promo assets for feature eligibility
Ship the small promo image early and add the marquee asset when the product is ready, because discovery surfaces in the store depend on those listing assets being present and approved.
Why this can grow a startup
A lot of teams leave promotional images until after launch because the extension technically works without them. Chrome's image rules make that shortsighted. The small promo image is required, and the marquee image is what makes featured placement possible. Those assets are not decoration. They control whether the store can show the extension in its higher-visibility surfaces. If the page is good enough to be featured but the assets are missing, the team quietly caps distribution before the ranking algorithm even gets a say.
Company example
Chrome's image guide says every item needs a 440x280 small promotional image and cannot be featured in marquee unless the listing also includes a marquee promotional image.
Source and metric
Source: Chrome for Developers: Supplying Images · Browse Chrome for Developers: Supplying Images tactics
Chrome requires a 440x280 small promo image and says an item cannot be featured in marquee without a marquee promotional image.
Source discovered: May 30, 2026
When to use it
Use this when Marketplaces, Brand, Discoverability is relevant to browser extensions, promotional assets, store featuring and you can run a bounded test with a low budget.
When not to use it
Do not use it as a substitute for customer evidence, a clear owner, or a measurable stop condition. Local platform rules and market behavior still need checking.
Founder checklist
- Read Chrome for Developers: Supplying Images and identify what is directly supported.
- Choose one channel context: Marketplaces, Brand, Discoverability.
- Define the test around Chrome requires a 440x280 small promo image and says an item cannot be featured in marquee without a marquee promotional image..
- Set an owner, evidence window, and stop condition before launch.
Explore the context
Apply this with an operator
Choose product surfaces that compound distribution without hiding weak activation or retention.