diff --git a/topola-egui/src/displayer.rs b/topola-egui/src/displayer.rs
index c3c27e6..ae79dbe 100644
--- a/topola-egui/src/displayer.rs
+++ b/topola-egui/src/displayer.rs
@@ -150,7 +150,7 @@ impl Displayer {
 
         ui.painter().add(egui::Shape::convex_polygon(
             points,
-            egui::Color32::RED,
+            color,
             egui::Stroke::new(5.0 / viewport.scale_factor(), color),
         ));
     }
diff --git a/topola/src/specctra.rs b/topola/src/specctra.rs
index 275563d..bcb879d 100644
--- a/topola/src/specctra.rs
+++ b/topola/src/specctra.rs
@@ -105,7 +105,7 @@ impl Board {
                                     pin.point_with_rotation(),
                                     layer,
                                     (circle.diameter / 2.0) as u64,
-                                    false,
+                                    !place_side_is_front,
                                 )
                             }
                             Shape::Rect(rect) => {
@@ -119,7 +119,7 @@ impl Board {
                                     rect.x2,
                                     rect.y2,
                                     layer,
-                                    false,
+                                    !place_side_is_front,
                                 )
                             }
                             Shape::Path(path) => {
@@ -131,7 +131,7 @@ impl Board {
                                     &path.coords,
                                     path.width,
                                     layer,
-                                    false,
+                                    !place_side_is_front,
                                 )
                             }
                             Shape::Polygon(polygon) => {
@@ -143,7 +143,7 @@ impl Board {
                                     &polygon.coords,
                                     polygon.width,
                                     layer,
-                                    false,
+                                    !place_side_is_front,
                                 )
                             }
                         }