Use bold bar as the default marker

man/man1/fzf.1

@@ -453,7 +453,7 @@ Input prompt (default: '> ')
 Pointer to the current line (default: '▌' or '>' depending on \fB--no-unicode\fR)
 .TP
 .BI "--marker=" "STR"
-Multi-select marker (default: '│' or '>' depending on \fB--no-unicode\fR)
+Multi-select marker (default: '┃' or '>' depending on \fB--no-unicode\fR)
 .TP
 .BI "--header=" "STR"
 The given string will be printed as the sticky header. The lines are displayed

src/options.go

@@ -2637,7 +2637,7 @@ func postProcessOptions(opts *Options) error {
 
 	if opts.Marker == nil {
 		// "▏" looks better, but not all terminals render it correctly
-		defaultMarker := "│"
+		defaultMarker := "┃"
 		if !opts.Unicode {
 			defaultMarker = ">"
 		}