diff --git a/pixler.bas b/pixler.bas
index 0068775..a81a7fd 100644
--- a/pixler.bas
+++ b/pixler.bas
@@ -44,7 +44,15 @@ layers(3).ihandle=_newimage(320,320,32)
 
 _dest layers(0).ihandle
 addcommand "canvas ("+str$(_width)+","+str$(_height)+")"
-line (0,0)-(_width-1,_height-1),_rgb32(255),bf
+for y = 0 to _height - 16 step 16
+    for x = 0 to _width - 16 step 16
+        if ((x / 16) + (y / 16)) mod 2 = 0 then
+            line (x, y)-(x + 16, y + 16), _rgb32(127), bf
+        else
+            line (x, y)-(x + 16, y + 16), _rgb32(192), bf
+        end if
+    next
+next
 _dest 0
 state.tool = 1
 state.zoom = 1.0