modified indicator in tab bar

src/app/widget.rs

@@ -32,6 +32,12 @@ fn tab_for(buffer: &Buffer, is_active: bool) -> Span<'static> {
 		Color::ui_grey()
 	};
 	
-	Span::from(format!(" {} ", buffer.file_name))
+	let modified_indicator = if buffer.has_unsaved_changes() {
+		"[+]"
+	} else {
+		""
+	};
+	
+	Span::from(format!(" {}{modified_indicator} ", buffer.file_name))
 		.bg(background)
 }

src/main.rs

@@ -19,12 +19,10 @@ const BYTES_PER_CHUNK: usize = 4;
 const CHUNKS_PER_LINE: usize = BYTES_PER_LINE / BYTES_PER_CHUNK;
 
 // TODO:
-// - multiple buffers (tabs)
 // - search
 // - modifications
 //   - insert/append
 //     - mode
-//     - how this works with edit history is strange :/
 //     - add to edit history when *leaving* insert mode
 //   - replace-and-keep-going
 //     - mode