During September 2025, Jan Müller focused on stabilizing theme typography within the thedevdojo/wave repository, addressing a persistent issue with default text color overrides in the Anchor Theme. By leveraging CSS and Tailwind CSS, Jan implemented a solution that wraps paragraph text color styling within an @layer base directive, ensuring consistent color application across themes and aligning with Tailwind CSS v4 standards. This targeted bug fix improved frontend reliability and reduced UI inconsistencies, directly impacting user experience and support overhead. Jan’s work demonstrated a clear understanding of theme layering and maintainability, though the scope was limited to a single, well-executed fix.