The apps
Every app speaks Aizome.
Each app's name is a Japanese word that says what it is for, in keeping with Aizome and Sekka, and each carries a plain English name too, which the Toolchest, the palette and the Deskbar show beside it and search by. Every one is built with Aizome's kit: one look, Night and Day, every target 24 points or more, and all of it reachable by keyboard.
Part of the session
Not apps of their own, but Aizome too: the Toolchest, the command palette, notifications, the lock screen and the password dialog, all drawn by the shell; and the file chooser other apps open and save with. The desktop