What is Customization Design Image?

The Customization Design Image is a thumbnail image which shows all the customization options based on the customers' choices.

When the Customers have added an item to cart, they would like to see their customized image inside the Cart Page as well.

By default, teeinblue will automatically replaces the default image of your Theme, and show our customization design image.

We prepared a custom coding method to help you show the design customer created (customization design) in different areas in Shopify.

In this instruction, we will instruct you to add customization design in Cart and in Order confirmation email.

Show design in Cart

Method 1: Adding a new Customization Image inside Cart Page

STEP 1: Identify class for the rendered design image placement

• Go to Cart page > Right click > Inspect the item in cart

• The developer tool will appear and auto detect the HTML tags of your line items details:

• Find a class named ".cart-item__details". Double click on ".cart-item__details" then copy it.

STEP 2: Add teeinblue's script code to your cart

• Log in to your Shopify store admin > Go to Themes > Edit code

• Look for file called main-cart-item.liquid. It should be under Sections folder

• In main-cart-item.liquid, press key combination Ctrl + F (For MacOS system, it should be Command + F) to open Search box, then paste ".cart-item__details" in search box to search for class

• While you are there, look for the nearest <ul> tag, it'll highlight the <ul> line and its </ul> tag. Scroll down and look for the highlighted </ul>.

• Add the script code below right under </ul>. Then Save it to activate design in cart.

{% assign customizationImage = item.properties._customization_image %}
{% if customizationImage %}
  <a href="{{customizationImage}}" class="tee-img-link" target="_blank" rel="noopener">
    <img class="tee-img-fluid" src="{{customizationImage}}" alt="artwork design" />
  </a>
{% endif %}

If search result is "for item", product is displayed in item.

➡ Use the script above normally.

If search result is "for line", it indicates that your product in cart is displayed in line

➡ Replace the "item" in the script above to "line". Like this:

{% assign customizationImage = line.properties._customization_image %}
{% if customizationImage %}
  <a href="{{customizationImage}}" class="tee-img-link" target="_blank" rel="noopener">
    <img class="tee-img-fluid" src="{{customizationImage}}" alt="artwork design" />
  </a>
{% endif %}

If search result is "for line_item", product is displayed in line_item ➡ Change the "item" in the script to "line_item".

Method 2: Replacing the default Theme's thumbnail Image

STEP 1: Identify class for the rendered design image placement

• Go to Cart page > Right click > Inspect the default image in cart

• The developer tool will appear, please hover your mouse over to the cart item section, and select its class

STEP 2: Add teeinblue's scripts into your Theme to replace the default thumbnail image.

Similar to the step above, log in to your Shopify store admin > Go to Themes > Edit code

• Look for section called theme.liquid.

• Under Layout folder, find the theme.liquid file, click on the file name to open that file on the right.

• Ctrl+F to find the tag </head>

• Paste the lines of code below above </head> and replace the "yourselector" with the CSS selector you copied in Step 1:

<!--    teeinblue configuration - please do not delete - start  -->
<script type="text/javascript">
    teeinblue = {
      cartContainerSelectors: ['yourselector'],
    };
</script>
<!--    teeinblue configuration - please do not delete - end  -->

• It will look like this:

Show design in confirmation email

STEP 1

Go to Shopify Settings > Notifications > Order confirmation

STEP 2

Scroll down and look for a line "{% for line in subtotal_line_items %}"

STEP 3

Scroll down and find the closest </td> tag. Then add script code below under that tag.

{% assign customizationImage = line.properties._customization_image %}
{% if customizationImage %}
  <img alt="artwork design" src="{{ customizationImage }}" align="left" width="60" height="60"/>
{% endif %}

STEP 4

Remember to Save after editing email script

Show design in Checkout Page

As of 2023, Shopify no longer use the file checkout.liquid to render the Checkout Page. Shopify has since beeen moved to Checkout Extensibility - a new foundation for checkout that is more secure, performant, upgrade-safe, and customized using apps.

• If you are a Shopify Plus user, please navigate to Store Settings > Customization Images > find For Checkout page block > and click on Add app block button

After that, you will be then re-directed to your Theme's Checkout Page settings.

• In this Page, under Order Summary section, please click on Add app block button, and select the Customization Image Preview

• Once you're done, it will look like this:

• When clicking on the Teeinblue block there, you can further modify the Order Summary section. For example, the button label, preview type, etc.

• Once you are done, please review the result by adding a Teeinblue product to Cart and see how it goes!

• Popover

• Popup

• Expansible

Showing design in Thank You and Order Status Page

• Navigate to your Online Store > Theme > Customize

• Continue to navigate to Checkout and customer accounts

NOTE: Inside Teeinblue portal, you can also navigate to Store Setting > Customization Image > and select the corresponding section like so to quickly open up the same section on Shopify

• Continue to navigate to Apps > Teeinblue Product Personalizer > Customization Image Preview > Select the Page you want to add the Preview Image to.

• Be sure to enter all the necessary information there, along with the display method you want

• Once you're done, please go ahead and make a test order. On Thank You Page, the button should look like this

Updated on: 10/04/2025