During December 2025, Mathieu Craig focused on improving French localization in the MapStore2 repository by addressing a translation bug affecting the phrase "About this content." He collaborated on a targeted fix, updating translation assets in JSON format to ensure consistency across data.fr-FR.json and related files. His work involved translation management and localization skills, with careful attention to user experience for French-speaking users. By resolving ambiguity in the interface and aligning UI strings with the corrected translation, Mathieu enhanced the application's accessibility. The depth of his contribution is reflected in thorough translation QA, code review, and collaborative commit practices throughout the process.