> ## Documentation Index
> Fetch the complete documentation index at: https://docs.genlook.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Install on Shopify 1.0 (Vintage) Themes
> Add the Genlook virtual try-on button to older Shopify themes that don't support app blocks, using a Custom Liquid snippet.
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. 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.
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**.
Click the Custom Liquid block and paste this snippet into its input box:
```liquid theme={null}
{%- liquid
assign ns = 'app--283488092161'
assign show_widget = false
assign collection_enabled = false
assign product_genlook_enabled = null
if product and product.id != null
assign product_genlook_enabled = product.metafields[ns].genlook_enabled.value
endif
if product and product.collections
for collection in product.collections
if collection.metafields[ns].genlook_enabled.value
assign collection_enabled = true
break
endif
endfor
endif
if product_genlook_enabled or collection_enabled
assign show_widget = true
endif
if request.design_mode
assign show_widget = true
endif
-%}
{% if show_widget %}
{% endif %}
```
Click **Save**. Open a product that has try-on enabled in the Genlook app (see [enabling products](/docs/virtual-tryon/widget-setup#enable-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 `
Please update the CSS inside the
