Whether you are using it on a large desktop monitor or a small laptop touchscreen, you may want the icons and text of the interface to be larger and more spread out or very compact. In Thunderbird 91, under View -> Density in the menu, you can select the UI density for the entire application. Three options are available: compact (small), normal(medium), and touch(large).
不论您使用的是大型桌面显示器还是笔记本的小触摸屏，都可能会希望用户界面中的图标和文字更大或更紧凑一点。您可以在 Thunderbird 91 版的“查看 -> 密度”菜单中选择界面整体的密度。有三个选项：紧凑（小）、普通（中）、触控（大）。