Worked on a Visual Design System Refresh for the mullvad/mullvadvpn-app repository, focusing on enhancing UI consistency and user experience. Introduced a new 'positive' color token in Kotlin to represent success and active states, applying it across multiple screens within the Android application. This update improved visual feedback and established a more cohesive design language, supporting faster UI iterations and clearer user perception. Leveraged Android development and UI/UX design skills to update surface container colors, laying the foundation for future theming and cross-product consistency. The work addressed both immediate visual improvements and long-term maintainability of the app’s design system.