Custom Perfex POS UI Revamp

I’m running Perfex CRM with the Omni Sales module and want the built-in POS to be revamped to include features like invoicing, cash sales, quotations, credit sales, and multiple payment options. The job is purely user-interface work—no new features or third-party integrations—just a clean, responsive makeover that fits your requirements.

You will have access to both source codes of Perfex CRM and Ultimate POS for reference. Your task is to ensure:

• A revamped POS layout that includes invoice generation, efficient cash sales processing, a quotation system, credit sale capabilities, and integrated multiple payment options.
• A visually appealing interface that mirrors Ultimate POS but customized to your preferences.
• The solution must remain modular or properly structured for seamless updates after deployment.

You’ll work on a staging clone, commit changes to Git, and provide clear instructions for production deployment. Let me know if you’ve customized Perfex views or Omni Sales before and have the expertise to tackle this task efficiently!