Thunderbird设计团队公布了该应用日历功能的视觉重设计方案[1]。这项重设计旨在实现日历功能的现代化与简化，使其与当前UI标准相符，并与Google日历、Apple和Microsoft等竞争对手的产品保持竞争力[1]。
新的日历设计采用三个主要组成部分：位于中央的网格区域作为主工作区、导航栏，以及可折叠的日历管理侧栏[1]。可折叠侧栏的设计能够根据不同屏幕尺寸需求进行调整[1]。此外，新设计还包括对事件详情对话框和事件编辑对话框的更新[1]。设计团队改进了颜色编码、对比度和视觉层次[1]。
为了获取用户意见，设计团队发布了TopicBox帖子并进行了用户调查[1]。设计团队计划通过正式渠道逐步向用户发布新日历设计，以便用户测试和提供反馈[1]。
Thunderbird's design team has unveiled a comprehensive visual overhaul of the desktop calendar application, aimed at modernizing and streamlining calendar functionality to align with contemporary UI standards and compete with offerings from Google Calendar, Apple, and Microsoft [1]. The redesign introduces a three-part layout structure featuring a central grid serving as the main workspace, a navigation bar, and a collapsible sidebar for calendar management that adapts to different screen sizes [1].
The project includes updates to both event detail and event editing dialogs, with improvements to color coding, contrast, and visual hierarchy [1]. To gather user input, the design team has published discussion posts on TopicBox and conducted user surveys [1]. The team plans to roll out the new calendar design incrementally through official channels to enable user testing and feedback collection [1].