diff --git a/src/main.rs b/src/main.rs
index 26bca8a..aa7e16a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -110,7 +110,9 @@ impl MyApp {
             Message::Remove(i) => {
                 self.poly_frame.polygons.remove(i - 1);
             }
-            Message::ChangeTeta(i, teta) => self.poly_frame.polygons[i].global_teta = teta,
+            Message::ChangeTeta(i, teta) => {
+                self.poly_frame.polygons[i].global_teta = teta;
+            }
             Message::ChangeColor(i, s) => {
                 let c: Color;
                 match s.as_str() {
@@ -140,12 +142,10 @@ impl MyApp {
 
                 row![
                     text(&polygon.name),
-                    slider(
-                        0.0..=2.0 * std::f32::consts::PI,
-                        polygon.global_teta,
-                        move |f| { Message::ChangeTeta(current_index, f) }
-                    )
-                    .step(2.0 * PI / 42f32),
+                    slider(0.0..=2.0 * PI, polygon.global_teta, move |f| {
+                        Message::ChangeTeta(current_index, f)
+                    })
+                    .step(PI / 84f32), // 84 | 4 for do PI / 4
                     button("Remove").on_press(Message::Remove(i)),
                     pick_list(
                         ["Black", "Blue", "Green", "Pink", "Yellow", "Cyan"]