Install:

After installed our Size Chart app, the app will redirect you to the Manage Size Charts screen.
The first, let enable the app. Please click the Settings from the left navigation to enable the app.
Size Chart Label: Change the button label. This button to open the size chart popup.
Size Chart Label Color: Change the button label color. Default: #333333
Zoom Image: Enable/Disable the zoom feature when hover on the image of size chart.
Custom CSS: You can add your custom css code here without edit your theme
See the screenshot below:

Add new a Size Chart:

From the Manage Size Charts, click the Add a Size Chart button.

Edit a Size Chart:

From the Manage Size Charts, click the pen icon on an size chart item you want to edit.

See the screenshots below:

Embed Code:

Click the code icon to get the embedded code. See the screenshot below:

Use the embedded code and paste it into any product on your store.

Option 1: Paste the embedded code into the product description: From your admin, go to Products, edit a product.

HTML Embed

OR TEXT Embed

Option 2: Paste the embedded code into the Sections/product-template.liquid: From your admin, go to Online Store > Themes, edit code of current theme.

Uninstall:

1. Go to Apps, remove the Size Chart app

2. Go to your current theme, edit the theme.liquid template file and remove our CSS,JS code. See the screenshot below: