diff --git a/.hgignore b/.hgignore
new file mode 100644
index 0000000..7388193
--- /dev/null
+++ b/.hgignore
@@ -0,0 +1 @@
+glob:*.swp
diff --git a/anaglymtd.lua b/anaglymtd.lua
index 5993fdb..d8c9ebb 100644
--- a/anaglymtd.lua
+++ b/anaglymtd.lua
@@ -3,7 +3,7 @@ ag.import("std")
 
 function init_event()
     ground = std.createPlanePointNormal(0, 0, 0, 0, 0, 1)
-    ground:setColor(0, 0, 1)
+    ground:setColor(0, 1, 0)
 
     ag.setCamera(2, -12, 10)
 end
diff --git a/grid.png b/grid.png
new file mode 100644
index 0000000..0090287
Binary files /dev/null and b/grid.png differ