Brand Design on a Budget: Google Stitch, Design Principles & Live Split Testing — Conversion Monthly
Seller Sessions · with Dorian and Matt Kostan · April 17, 2026 · 55 min
Summary
This episode offers ecommerce operators a practical guide to creating professional-quality brand designs on a budget. It demonstrates how to leverage free AI tools like Google Stitch, understand core design principles, and meticulously split-test new designs to optimize conversions. The key takeaway emphasizes that the synergy of compelling information and effective design is what truly converts customers.
Key takeaways
Master the three core design fundamentals—font pairing, grid/layout, and color theory—to create professional Amazon listings that stand out.
Utilize Google Stitch, a free AI design tool, to rapidly generate complete brand guidelines, font pairings, and mockups from simple product information and reference images.
Automate brand kit creation by integrating Perplexity with Google Stitch to autonomously generate full brand assets with minimal manual input.
Implement live split-testing using tools like Product Pinion to empirically validate new design elements and confirm their positive impact on conversion rates.
Prioritize the combination of clear information and effective design over mere aesthetics, as this strategic synergy is the ultimate driver of higher conversion rates.
In this Conversion Monthly, Danny McMillan is joined by Dorian and Matt Kostan (no Sim this episode — he's on holiday) for a live, practical session on building brand-quality design systems fast and for free. Dorian opens with a tight crash course in the three design fundamentals that separate professional Amazon listings from amateur ones: font pairing, grid and layout, and colour theory. He then demos Google Stitch live, building a full design system from a wooden utensil listing in real time. Danny shows a more automated route — using Perplexity to control Stitch autonomously and generate a complete brand kit from just a product title, bullet points, and a reference image. Matt rounds it off with a live Product Pinion split test of the new designs against the original listing — and the results deliver the session's sharpest lesson. The big takeaway: pretty is not enough. Information + design working together is what converts. Key Topics Google Stitch for brand design — Free AI design tool that generates full brand guidelines, font pairings, and mockups from reference images and prompts 3 design fundamentals every seller should know — Font pairing, grid and layout, colour theory with a contrasting action colour Perplexity + Stitch autonomous workflow — Danny demos letting Perplexity control Stitch end-to-end with zero manual input to generate a full brand kit Coolers.co — Free colour palette tool with a visualiser and AI colour bot (Matt) UX and design laws applied to Amazon — Miller's Law, Fitts' Law, Jacob's Law, Occam's Razor transl
Master the three core design fundamentals—font pairing, grid/layout, and color theory—to create professional Amazon listings that stand out.
What does this episode say about conversion & cro?
Utilize Google Stitch, a free AI design tool, to rapidly generate complete brand guidelines, font pairings, and mockups from simple product information and reference images.
What does this episode say about ai & automation?
Automate brand kit creation by integrating Perplexity with Google Stitch to autonomously generate full brand assets with minimal manual input.
What does this episode say about amazon & marketplaces?
Implement live split-testing using tools like Product Pinion to empirically validate new design elements and confirm their positive impact on conversion rates.
What does this episode say about brand & content?
Prioritize the combination of clear information and effective design over mere aesthetics, as this strategic synergy is the ultimate driver of higher conversion rates.
