During October 2025, this developer enhanced the oat-sa/tao-core-ui-fe repository by implementing new text decoration styles for CKEditor, specifically adding dashed, wavy, and strikethrough options. They approached the task by creating custom CSS classes and integrating them into the CKEditor configuration, thereby extending the editor’s rich text capabilities. The work was completed primarily in JavaScript and SCSS, demonstrating proficiency in front end development and plugin customization. While the contribution focused on a single feature and did not address bug fixes, it provided a targeted improvement to the user interface, enabling more expressive text formatting within the application.