Developed and integrated an OLED Accessibility Theme for the GyulyVGC/sniffnet repository, focusing on enhancing usability for visually impaired users and optimizing display on OLED screens. The work centered on creating the sniff_oled.toml theme file, which defined high-contrast color schemes to improve accessibility and inclusivity. Leveraging skills in UI/UX design and accessibility, the developer utilized TOML for configuration and ensured seamless integration with the existing theming system. Comprehensive documentation and usage guidance were provided to support both end-users and maintainers. This contribution established a foundation for future accessibility improvements and broadened device compatibility without introducing new bug fixes.