Though a default theme is cost-effective, its generic nature hinders brand differentiation because the theme layout file, configuration file, and structure are not unique. Customized themes empower you to craft an exceptional e-commerce experience that reflects your brand and caters to specific business needs. This approach goes beyond aesthetics, impacting the user experience and driving sales conversions. By leveraging Magento’s theme inheritance and composer package default themes, developers can build a custom theme upon a familiar foundation while showcasing your brand identity. Investing in a customized theme can significantly enhance your competitive edge.