Dheeraj contributed to the SupporthivesProjects/CentralInvoicingSystem repository by delivering two customer-facing UI enhancements focused on invoice presentation. He applied Blade templating and CSS to refine background colors and shadow effects, aligning the e-commerce interface with brand guidelines and improving visual consistency. Dheeraj also redesigned the invoice template using HTML and responsive design principles, enhancing readability, spacing, and table layouts for a more professional appearance across devices. While no bugs were addressed during this period, his work targeted user experience improvements that reduce support queries related to formatting, supporting smoother onboarding and fostering greater client trust in the invoicing system.