T11: the window is Ely's ColumnShell: sessions, terminal and right columns under a transparent title bar, the terminal's header wearing the program's title; Cmd-B and Cmd-Alt-B toggle the side columns, kept in the settings; Linux asks for client decorations inside Ely's ResizeBorder

src/lib.rs

@@ -4,3 +4,4 @@ pub mod term;
 #[cfg(test)]
 mod testlog;
 pub mod themes;
+pub mod workspace;