diff --git a/assets/tiles/marble.png b/assets/tiles/marble.png
index 1f24d7e..3387000 100644
Binary files a/assets/tiles/marble.png and b/assets/tiles/marble.png differ
diff --git a/src/marble_engine.rs b/src/marble_engine.rs
index 7cf90e4..e49afe0 100644
--- a/src/marble_engine.rs
+++ b/src/marble_engine.rs
@@ -70,14 +70,27 @@ impl Machine {
 				if let Some(tile) = self.board.get((x, y).into()) {
 					let px = x as i32 * tile_size + offset.x as i32 + tile_size / 2;
 					let py = y as i32 * tile_size + offset.y as i32 + tile_size / 2;
-					if let Tile::Marble { value, dir: _ } = tile {
+					if let Tile::Marble { value, dir } = tile {
+						let fontsize = (zoom + 1) * 10;
 						d.draw_text(
 							&format!("{value}"),
 							px - tile_size / 2 + 2,
 							py - tile_size / 2 + 2,
-							20,
+							fontsize,
 							Color::MAGENTA,
-						)
+						);
+						d.draw_text(
+							match dir {
+								Direction::Up => "^",
+								Direction::Down => "v",
+								Direction::Left => "<",
+								Direction::Right => ">",
+							},
+							px - tile_size / 2 + 2,
+							py - tile_size / 2 + fontsize,
+							fontsize,
+							Color::MAGENTA,
+						);
 					}
 				}
 			}
@@ -114,9 +127,7 @@ impl Machine {
 						new_tile = Some(Tile::Blank);
 					}
 					Tile::Digit(d) => {
-						let new_val = value
-							.wrapping_mul(10)
-							.wrapping_add(*d as MarbleValue);
+						let new_val = value.wrapping_mul(10).wrapping_add(*d as MarbleValue);
 						*target = Tile::Marble {
 							value: new_val,
 							dir,
@@ -258,7 +269,7 @@ impl Machine {
 						|| !self.board.get_or_blank(pos_b).is_blank())
 						&& self.board.get_or_blank(front_pos).is_blank()
 					{
-						let result = match op {
+						let value = match op {
 							MathOp::Add => val_a.wrapping_add(val_b),
 							MathOp::Sub => val_a.wrapping_sub(val_b),
 							MathOp::Mul => val_a.wrapping_mul(val_b),
@@ -266,7 +277,7 @@ impl Machine {
 							MathOp::Rem => val_a.checked_rem(val_b).unwrap_or_default(),
 						};
 						// println!("{op:?} a:{val_a} b:{val_b}");
-						*self.board.get_mut_unchecked(front_pos) = Tile::Marble { value: result, dir };
+						*self.board.get_mut_unchecked(front_pos) = Tile::Marble { value, dir };
 						self.marbles.push(front_pos);
 					}
 				}
@@ -314,4 +325,3 @@ impl Machine {
 		}
 	}
 }
-