diff --git a/main.json b/main.json
index 312323b..f529d80 100644
--- a/main.json
+++ b/main.json
@@ -10,7 +10,14 @@
  "infinite":true,
  "layers":[
         {
-         "chunks":[],
+         "chunks":[
+                {
+                 "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 145, 145, 145, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+                 "height":16,
+                 "width":16,
+                 "x":0,
+                 "y":0
+                }],
          "height":16,
          "id":1,
          "name":"start",
@@ -18,14 +25,21 @@
          "startx":0,
          "starty":0,
          "type":"tilelayer",
-         "visible":false,
+         "visible":true,
          "width":16,
          "x":0,
          "y":0
         }, 
         {
-         "chunks":[],
-         "height":0,
+         "chunks":[
+                {
+                 "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 145, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+                 "height":16,
+                 "width":16,
+                 "x":0,
+                 "y":0
+                }],
+         "height":16,
          "id":4,
          "name":"exit",
          "opacity":1,
@@ -33,13 +47,13 @@
                 {
                  "name":"exitUrl",
                  "type":"string",
-                 "value":"foo.json#bar"
+                 "value":""
                 }],
          "startx":0,
          "starty":0,
          "type":"tilelayer",
          "visible":false,
-         "width":0,
+         "width":16,
          "x":0,
          "y":0
         }, 
@@ -73,7 +87,7 @@
          "startx":0,
          "starty":-16,
          "type":"tilelayer",
-         "visible":true,
+         "visible":false,
          "width":32,
          "x":0,
          "y":0
@@ -94,7 +108,7 @@
          "startx":0,
          "starty":0,
          "type":"tilelayer",
-         "visible":true,
+         "visible":false,
          "width":16,
          "x":0,
          "y":0
@@ -106,7 +120,7 @@
          "objects":[],
          "opacity":1,
          "type":"objectgroup",
-         "visible":true,
+         "visible":false,
          "x":0,
          "y":0
         }, 
@@ -119,7 +133,7 @@
          "startx":0,
          "starty":0,
          "type":"tilelayer",
-         "visible":true,
+         "visible":false,
          "width":0,
          "x":0,
          "y":0
@@ -133,7 +147,7 @@
          "startx":0,
          "starty":0,
          "type":"tilelayer",
-         "visible":true,
+         "visible":false,
          "width":0,
          "x":0,
          "y":0