How to enable icon for your attachment instead of the download button?
When you select the ‘Upload Icon’ option, You can select any default icon from the list of available icons or you can set your own custom icon too.
It will improve your store’s look and drag buyers’ attention towards the attachment faster.
Screenshot 1: (Admin: Upload attachment icon)
Note: If no file icon is selected then it will show the default attachment type.
Screenshot 2: (Front: Product attachment with icon)
By default, this icon will come with a gray background like the above screenshot. But, If you wish to remove the grey background color from the attachment icon. Simply click the "Remove Background Color from Icon" checkbox and save settings.
Screenshot 3: (Front: Product attachment icon after removing background color)