Worked on the pygame-community/pygame-ce repository to enhance the reliability of the flood fill feature in the draw module. Focused on expanding automated test coverage using Python and Pygame, the work validated flood fill behavior across scenarios such as interactions with drawn circles, filling inside and outside shapes, and preventing overdrawing. Emphasis was placed on improving test readability and maintainability by refining code documentation and clarifying comments, ensuring that future contributors can easily understand and extend the tests. This approach reduced the risk of regressions in rendering, supporting more confident releases and streamlining review cycles for the pygame-ce project.