EcoCart is completely customizable so that it can properly reflect your brand. Everything from the design to the messaging. Please reach out to support@ecocart.io and we'll get started on your custom integration, free of cost.
If you have access to a developer with knowledge of HTML and CSS, they can follow this guide to configure EcoCart: https://ecocarthelp.zendesk.com/hc/en-us/articles/4408995052819-Using-CSS-and-HTML-to-customize-your-EcoCart-Integration