Can try-on stay live during a theme redesign?

Why the redesign doesn't touch your live store

Looksy is a theme app extension: the try-on block is added and positioned in Shopify's theme editor, with no edits to your theme's code. Redesign work normally happens on a duplicated or newly installed theme that stays unpublished until you switch, and nothing you do there changes the published theme shoppers are using. Try-on keeps running for them exactly as before. That separation is the point of Shopify's theme workflow — your live product pages and the redesign in progress are two different themes until the moment you publish.

The one task the new theme needs

App blocks live inside each theme's settings, so a fresh theme — or even a duplicate — needs its own pass in the theme editor. Open the new theme in the editor, add the Looksy block to your product page template, and position it where you want it to sit. Do not assume the block, its placement, or its settings carried over from the old theme; whether anything transferred is something to verify in the editor, not something to take on faith. It is a small task, but skipping it means publishing a theme where the try-on button simply is not there.

Run a preview check before switching themes

The safe path is to preview the unpublished theme and use try-on as a shopper would: open a product page, confirm the block renders where you positioned it, and run a test try-on end to end. Check mobile as well as desktop, since your new layout may place the block differently at each width. If placement looks wrong, fix it in the editor and preview again — and if the flow itself behaves unexpectedly in preview, confirm with Looksy support before you publish. Because the old theme stays live throughout, there is no downtime pressure.

After you publish the new theme

Once the new theme is live, run one more try-on on a real product page to confirm everything survived the switch. Then watch your Looksy analytics — they show what shoppers try on, add to cart, and buy — to confirm shoppers are still finding the button in its new position. A redesign that moves the block far down the page can quietly reduce usage even though nothing is broken. If the block behaves unexpectedly on the new theme, Looksy support is the escalation path; because no theme code was edited, there are no leftover snippets to clean up.

Sources: the public Shopify App Store listing for Looksy. Last checked 27 July 2026.

Related questions: What should my support team know about try-on? · How do I brief a virtual assistant on managing try-on? · How do I audit my catalog for try-on readiness?