Add index numbers to pane labels in the viewport menu bars

 src/main.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index e664fff..992188f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2143,9 +2143,9 @@ fn geometry_to_spreadsheet_data(geom: &Geometry) -> (Vec<String>, Vec<Vec<String
             Box::new(Splitter::new(SPLITTER_W)),
             Box::new(ParametersBg::new()),
             Box::new(Canvas::new()),
-            Box::new(MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("Network").with_item("File", &["New", "Open", "Save"]).with_item("Edit", &["Undo", "Redo"]).with_item("View", &["Zoom In", "Zoom Out"])),
-            Box::new(MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("Viewport").with_item("Camera", &["Perspective", "Orthographic"]).with_item("Display", &["Square Aspect"]).with_item("Guides", &["Show Grid", "Cube", "Origin"])),
-            Box::new(MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("Parameters").with_item("Preset", &["Default", "Custom"]).with_item("Reset", &["All"])),
+            Box::new(MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("0: Network").with_item("File", &["New", "Open", "Save"]).with_item("Edit", &["Undo", "Redo"]).with_item("View", &["Zoom In", "Zoom Out"])),
+            Box::new(MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("1: Viewport").with_item("Camera", &["Perspective", "Orthographic"]).with_item("Display", &["Square Aspect"]).with_item("Guides", &["Show Grid", "Cube", "Origin"])),
+            Box::new(MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("2: Parameters").with_item("Preset", &["Default", "Custom"]).with_item("Reset", &["All"])),
         ];
         for _ in 0..NODE_SLOT_COUNT {
             widgets.push(Box::new(Node::new(0.0, 0.0, 0.0, 0.0, "")));
@@ -2156,7 +2156,7 @@ fn geometry_to_spreadsheet_data(geom: &Geometry) -> (Vec<String>, Vec<Vec<String
         widgets.push(Box::new(NodePalette::new()));
         widgets.push(Box::new(Spreadsheet::new()));
         
-        let mut spreadsheet_menubar = MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("Spreadsheet");
+        let mut spreadsheet_menubar = MenuBar::new(0.0, 0.0, 0.0, MENUBAR_H).with_title("3: Spreadsheet");
         spreadsheet_menubar.visible = false;
         widgets.push(Box::new(spreadsheet_menubar));