diff --git a/Scripts/Format/Editor/VRMVersionMenu.cs b/Scripts/Format/Editor/VRMVersionMenu.cs
index 6939c492f..af9cc3400 100644
--- a/Scripts/Format/Editor/VRMVersionMenu.cs
+++ b/Scripts/Format/Editor/VRMVersionMenu.cs
@@ -55,7 +55,7 @@ namespace VRM
 
             Debug.LogFormat("write SsonSchema: {0}", path.FullPath);
             var schema = JsonSchema.FromType<glTF_VRM_extensions>();
-            var f = new JsonFormatter();
+            var f = new JsonFormatter(2);
             schema.ToJson(f);
             var json = f.ToString();
             File.WriteAllText(path.FullPath, json, Encoding.UTF8);
diff --git a/specification/0.0/schema/vrm.schema.json b/specification/0.0/schema/vrm.schema.json
index 9ce7a54ba..2eeca7a2f 100644
--- a/specification/0.0/schema/vrm.schema.json
+++ b/specification/0.0/schema/vrm.schema.json
@@ -1 +1,179 @@
-{"title":"glTF_VRM_extensions","type":"object","properties":{"exporterVersion":{"title":"String","type":"string"},"meta":{"title":"glTF_VRM_Meta","type":"object","properties":{"title":{"title":"String","type":"string"},"version":{"title":"String","type":"string"},"author":{"title":"String","type":"string"},"contactInformation":{"title":"String","type":"string"},"reference":{"title":"String","type":"string"},"texture":{"title":"Int32","type":"integer"},"allowedUserName":{"title":"String","type":"string"},"violentUssageName":{"title":"String","type":"string"},"sexualUssageName":{"title":"String","type":"string"},"commercialUssageName":{"title":"String","type":"string"},"otherPermissionUrl":{"title":"String","type":"string"},"licenseName":{"title":"String","type":"string"},"otherLicenseUrl":{"title":"String","type":"string"}}},"humanoid":{"title":"glTF_VRM_Humanoid","type":"object","properties":{"humanBones":{"title":"List`1","type":"array"},"armStretch":{"title":"Single","type":"number"},"legStretch":{"title":"Single","type":"number"},"upperArmTwist":{"title":"Single","type":"number"},"lowerArmTwist":{"title":"Single","type":"number"},"upperLegTwist":{"title":"Single","type":"number"},"lowerLegTwist":{"title":"Single","type":"number"},"feetSpacing":{"title":"Single","type":"number"},"hasTranslationDoF":{"title":"Boolean","type":"bool"}}},"firstPerson":{"title":"glTF_VRM_Firstperson","type":"object","properties":{"firstPersonBone":{"title":"Int32","type":"integer"},"firstPersonBoneOffset":{"title":"Vector3","type":"array"},"meshAnnotations":{"title":"List`1","type":"array"},"lookAtTypeName":{"title":"String","type":"string"},"lookAtHorizontalInner":{"title":"glTF_VRM_DegreeMap","type":"object","properties":{"curve":{"title":"Single[]","type":"array"},"xRange":{"title":"Single","type":"number"},"yRange":{"title":"Single","type":"number"}}},"lookAtHorizontalOuter":{"title":"glTF_VRM_DegreeMap","type":"object","properties":{"curve":{"title":"Single[]","type":"array"},"xRange":{"title":"Single","type":"number"},"yRange":{"title":"Single","type":"number"}}},"lookAtVerticalDown":{"title":"glTF_VRM_DegreeMap","type":"object","properties":{"curve":{"title":"Single[]","type":"array"},"xRange":{"title":"Single","type":"number"},"yRange":{"title":"Single","type":"number"}}},"lookAtVerticalUp":{"title":"glTF_VRM_DegreeMap","type":"object","properties":{"curve":{"title":"Single[]","type":"array"},"xRange":{"title":"Single","type":"number"},"yRange":{"title":"Single","type":"number"}}}}},"blendShapeMaster":{"title":"glTF_VRM_BlendShapeMaster","type":"object","properties":{"blendShapeGroups":{"title":"List`1","type":"array"}}},"secondaryAnimation":{"title":"glTF_VRM_SecondaryAnimation","type":"object","properties":{"boneGroups":{"title":"List`1","type":"array"},"colliderGroups":{"title":"List`1","type":"array"}}},"materialProperties":{"title":"List`1","type":"array"}}}
\ No newline at end of file
+{
+  "type":"object",
+  "properties":{
+    "exporterVersion":{
+      "type":"string"
+    },
+    "meta":{
+      "type":"object",
+      "properties":{
+        "title":{
+          "type":"string"
+        },
+        "version":{
+          "type":"string"
+        },
+        "author":{
+          "type":"string"
+        },
+        "contactInformation":{
+          "type":"string"
+        },
+        "reference":{
+          "type":"string"
+        },
+        "texture":{
+          "type":"integer"
+        },
+        "allowedUserName":{
+          "type":"string"
+        },
+        "violentUssageName":{
+          "type":"string"
+        },
+        "sexualUssageName":{
+          "type":"string"
+        },
+        "commercialUssageName":{
+          "type":"string"
+        },
+        "otherPermissionUrl":{
+          "type":"string"
+        },
+        "licenseName":{
+          "type":"string"
+        },
+        "otherLicenseUrl":{
+          "type":"string"
+        }
+      }
+    },
+    "humanoid":{
+      "type":"object",
+      "properties":{
+        "humanBones":{
+          "type":"array"
+        },
+        "armStretch":{
+          "type":"number"
+        },
+        "legStretch":{
+          "type":"number"
+        },
+        "upperArmTwist":{
+          "type":"number"
+        },
+        "lowerArmTwist":{
+          "type":"number"
+        },
+        "upperLegTwist":{
+          "type":"number"
+        },
+        "lowerLegTwist":{
+          "type":"number"
+        },
+        "feetSpacing":{
+          "type":"number"
+        },
+        "hasTranslationDoF":{
+          "type":"bool"
+        }
+      }
+    },
+    "firstPerson":{
+      "type":"object",
+      "properties":{
+        "firstPersonBone":{
+          "type":"integer"
+        },
+        "firstPersonBoneOffset":{
+          "type":"array"
+        },
+        "meshAnnotations":{
+          "type":"array"
+        },
+        "lookAtTypeName":{
+          "type":"string"
+        },
+        "lookAtHorizontalInner":{
+          "type":"object",
+          "properties":{
+            "curve":{
+              "type":"array"
+            },
+            "xRange":{
+              "type":"number"
+            },
+            "yRange":{
+              "type":"number"
+            }
+          }
+        },
+        "lookAtHorizontalOuter":{
+          "type":"object",
+          "properties":{
+            "curve":{
+              "type":"array"
+            },
+            "xRange":{
+              "type":"number"
+            },
+            "yRange":{
+              "type":"number"
+            }
+          }
+        },
+        "lookAtVerticalDown":{
+          "type":"object",
+          "properties":{
+            "curve":{
+              "type":"array"
+            },
+            "xRange":{
+              "type":"number"
+            },
+            "yRange":{
+              "type":"number"
+            }
+          }
+        },
+        "lookAtVerticalUp":{
+          "type":"object",
+          "properties":{
+            "curve":{
+              "type":"array"
+            },
+            "xRange":{
+              "type":"number"
+            },
+            "yRange":{
+              "type":"number"
+            }
+          }
+        }
+      }
+    },
+    "blendShapeMaster":{
+      "type":"object",
+      "properties":{
+        "blendShapeGroups":{
+          "type":"array"
+        }
+      }
+    },
+    "secondaryAnimation":{
+      "type":"object",
+      "properties":{
+        "boneGroups":{
+          "type":"array"
+        },
+        "colliderGroups":{
+          "type":"array"
+        }
+      }
+    },
+    "materialProperties":{
+      "type":"array"
+    }
+  }
+}
\ No newline at end of file