diff --git a/geom/demos/sat.py b/geom/demos/sat.py
index b09b61f..8d5cf11 100644
--- a/geom/demos/sat.py
+++ b/geom/demos/sat.py
@@ -42,13 +42,13 @@ class SeparatingAxisTheorem:
              add(*scale(*normal, 1000), *offset))
 
         # shape 1
-        line(surface, YELLOW if not colliding else RED,
+        line(surface, GREEN if not colliding else RED,
              add(*scale(*normal, min1), *offset),
-             add(*scale(*normal, max1), *offset), 5)
+             add(*scale(*normal, max1), *offset), 8)
         # shape 2
-        line(surface, YELLOW if not colliding else RED,
+        line(surface, GREEN if not colliding else RED,
              add(*scale(*normal, min2), *offset),
-             add(*scale(*normal, max2), *offset), 5)
+             add(*scale(*normal, max2), *offset), 8)
 
     def render(self, surface):
         self.handle_input()