Platform rules
No guessed rules. Ever.
Most “image requirement” lists online are copies of copies, years stale. Photolint lints against rules taken from each platform’s own documentation: dated, linked, and re-checked weekly. If we can’t verify a rule at the source, it doesn’t exist here.
01 Find the official source Seller Central, help centers, developer docs: the platform’s own words, not a blog post about them.
02 Encode it as data Each rule becomes a machine-readable spec with its source URL and verification date attached. The app, the guides and this site all read the same data.
03 Re-check weekly Platforms change rules quietly. Every spec is re-verified on a schedule; the date you see is the date it was last confirmed true.
What a verified rule looks like
main-white-bg MAIN image background must be pure white, RGB (255, 255, 255) sellercentral.amazon.com
✓ verified Aug 28, 2026