diff --git a/iced-tetris/src/main.rs b/iced-tetris/src/main.rs
index dd0bedf..237eabb 100644
--- a/iced-tetris/src/main.rs
+++ b/iced-tetris/src/main.rs
@@ -1,4 +1,4 @@
-use iced::widget::canvas::{self, Path};
+use iced::widget::canvas::{self, Path, Stroke};
 use iced::{
     executor, keyboard, time, Application, Color, Command, Element, Length, Point, Rectangle,
     Settings, Size, Subscription,
@@ -129,8 +129,20 @@ impl<'a> canvas::Program<Message> for Tetris {
             );
             let block = Path::rectangle(point, block_size);
             let color = tetronimo.color();
-            let color = Color::from_rgb8(color.0, color.1, color.2);
-            frame.fill(&block, color);
+            let fill_color = Color::from_rgb8(color.0, color.1, color.2);
+            frame.fill(&block, fill_color);
+
+            let stroke_color = Color::from_rgb8(
+              color.0.checked_sub(20).unwrap_or(0),
+              color.1.checked_sub(20).unwrap_or(0),
+              color.2.checked_sub(20).unwrap_or(0),
+            );
+            let stroke = Stroke {
+              width: 3.0,
+              color: stroke_color,
+              ..Stroke::default()
+            };
+            frame.stroke(&block, stroke);
         }
 
         vec![background, frame.into_geometry()]