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Older Shopify themes (pre Online Store 2.0, often called “vintage” or “1.0” themes) do not support app blocks, so the Genlook Try-On Button block will not appear in your theme editor. You can still install the widget: enable the app embed as usual, then place the button with a small Custom Liquid snippet.
1

Enable the Genlook Try-On app embed

  1. In your Shopify admin, go to Online Store > Themes and click Customize on your active theme.
  2. Open App embeds at the bottom of the left sidebar.
  3. Find Genlook Try-On and toggle it on.
  4. Click Save.
This loads the Genlook SDK on your store. Without it, the button below will not do anything.
Shopify theme editor showing the Genlook Try-On app embed toggle enabled

Enable the Genlook Try-On app embed in the theme editor

2

Add a Custom Liquid block to your product template

  1. Still in the theme editor, select your Products > Default product template from the dropdown at the top.
  2. Under the product information section, click Add block and choose Custom Liquid.
  3. Drag the block to where you want the button, ideally right below Add to cart.
Shopify theme editor showing how to add a Custom Liquid block

Add a Custom Liquid block to your product page

3

Paste the Genlook snippet

Click the Custom Liquid block and paste this snippet into its input box:
Click Save. Open a product that has try-on enabled in the Genlook app (see enabling products) and the button should be live.

Customize the colors

The snippet ships with a dark green button (#0A1810). To match your brand, edit the <style> block at the top of the snippet:
The colors inside the try-on modal itself come from the Widget Design tab in the Genlook app, the same as on modern themes. Developers can also override them per page; see the configuration reference.

Let AI style the button for you

Not comfortable with CSS? Paste this prompt into ChatGPT or Claude, fill in the brackets, and swap the answer into your snippet:

Need help?

If the button is not showing up or you would rather have us handle it, email support@genlook.app. We are happy to log into your store and set it up for you, free of charge.