Alejandro improved touch input reliability for Offscreen Canvas interactions in the mrdoob/three.js repository, focusing on enhancing multi-touch accuracy and responsiveness. He addressed gesture misfires by propagating pointerId in touch event properties and invoking event.preventDefault() to suppress unintended mouse events, resulting in a smoother input path for interactive graphics. Working with JavaScript and front end development techniques, Alejandro’s update improved touch picking, especially for two-finger interactions, without introducing API changes. He also updated documentation to clarify the fix and ensure traceability. This work demonstrated a focused, in-depth approach to refining user experience in complex touch-driven environments.