Tiago Carrondo enhanced Thunderbird’s calendar feature by delivering new localization strings for image priority statuses within the thunderbird/thunderbird-l10n repository. Focusing on front end development and localization, Tiago initiated a migration to correct the image priority format, addressing Bug 1952231. Using FTL and localization best practices, the work improved UI clarity and reduced ambiguity in priority indicators across different locales. Although the scope was limited to one feature over a month, the changes strengthened localization consistency and laid groundwork for future improvements. Tiago’s contributions supported smoother translation workflows and improved the overall user experience for calendar priority representation.