Worked on the Esri/harfbuzz repository to address a specific issue in mathematical typesetting by fixing the OpenType MATH font metrics for Cambria Math. Focused on correcting the scaling behavior when determining minimum heights for display operators and delimited sub-formulas, the solution improved the accuracy of font metric interpretation and enhanced layout consistency across platforms. Utilized C++ to implement targeted validation and alignment with established OpenType MATH table handling practices. This work contributed to more stable and predictable rendering of mathematical expressions, reducing defects and ensuring that font metrics drive correct layout decisions in complex typesetting scenarios.