Taichi Youtub developed orientation support for the TabWidget component in the slint-ui/slint repository, enabling both horizontal and vertical tab layouts. This work involved designing and implementing a new orientation property in Rust, updating layout calculations, and introducing additional tab bar components to support flexible UI configurations. Taichi also authored comprehensive documentation in Markdown to guide developers in adopting the new feature. By minimizing changes to the API surface, the solution improved design-system adaptability and streamlined onboarding for other developers. The project demonstrated depth in component design, UI development, and technical writing, addressing issue #3688 within a focused development period.