diff --git a/Implab/Formats/JSON/JSONXmlReader.cs b/Implab/Formats/JSON/JSONXmlReader.cs
--- a/Implab/Formats/JSON/JSONXmlReader.cs
+++ b/Implab/Formats/JSON/JSONXmlReader.cs
@@ -266,9 +266,17 @@ namespace Implab.Formats.JSON {
             get {
                 if (m_parser.ElementValue == null)
                     return String.Empty;
-                if (Convert.GetTypeCode(m_parser.ElementValue) == TypeCode.Double)
-                    return ((double)m_parser.ElementValue).ToString(CultureInfo.InvariantCulture);
-                return m_parser.ElementValue.ToString();
+                
+                switch(Convert.GetTypeCode (m_parser.ElementValue)) {
+                case TypeCode.Double:
+                    return ((double)m_parser.ElementValue).ToString (CultureInfo.InvariantCulture);
+                case TypeCode.String:
+                    return (string)m_parser.ElementValue;
+                case TypeCode.Boolean:
+                    return (bool)m_parser.ElementValue ? "true" : "false";
+                default:
+                    return m_parser.ElementValue.ToString ();
+                }
             }
         }
 
diff --git a/Implab/Implab.csproj b/Implab/Implab.csproj
--- a/Implab/Implab.csproj
+++ b/Implab/Implab.csproj
@@ -205,12 +205,14 @@
     <MonoDevelop>
       <Properties>
         <Policies>
-          <CSharpFormattingPolicy IndentSwitchBody="True" NamespaceBraceStyle="EndOfLine" ClassBraceStyle="EndOfLine" InterfaceBraceStyle="EndOfLine" StructBraceStyle="EndOfLine" EnumBraceStyle="EndOfLine" MethodBraceStyle="EndOfLine" ConstructorBraceStyle="EndOfLine" DestructorBraceStyle="EndOfLine" BeforeMethodDeclarationParentheses="False" BeforeMethodCallParentheses="False" BeforeConstructorDeclarationParentheses="False" NewLineBeforeConstructorInitializerColon="NewLine" NewLineAfterConstructorInitializerColon="SameLine" BeforeIndexerDeclarationBracket="False" BeforeDelegateDeclarationParentheses="False" NewParentheses="False" SpacesBeforeBrackets="False" inheritsSet="Mono" inheritsScope="text/x-csharp" scope="text/x-csharp" />
-          <TextStylePolicy FileWidth="120" EolMarker="Unix" inheritsSet="VisualStudio" inheritsScope="text/plain" scope="text/x-csharp" />
+          <CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="False" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInProperties="False" NewLinesForBracesInAccessors="False" NewLinesForBracesInAnonymousMethods="False" NewLinesForBracesInControlBlocks="False" NewLinesForBracesInAnonymousTypes="False" NewLinesForBracesInObjectCollectionArrayInitializers="False" NewLinesForBracesInLambdaExpressionBody="False" NewLineForElse="False" NewLineForCatch="False" NewLineForFinally="False" NewLineForMembersInObjectInit="False" NewLineForMembersInAnonymousTypes="False" NewLineForClausesInQuery="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceAfterControlFlowStatementKeyword="True" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" SpacingAfterMethodDeclarationName="True" SpaceAfterMethodCallName="True" SpaceBeforeOpenSquareBracket="True" SpaceBeforeColonInBaseTypeDeclaration="True" scope="text/x-csharp" />
+          <TextStylePolicy FileWidth="120" TabWidth="4" IndentWidth="4" RemoveTrailingWhitespace="True" NoTabsAfterNonTabs="False" TabsToSpaces="True" EolMarker="Unix" scope="text/x-csharp" />
           <DotNetNamingPolicy DirectoryNamespaceAssociation="PrefixedHierarchical" ResourceNamePolicy="MSBuild" />
-          <TextStylePolicy FileWidth="120" TabsToSpaces="False" inheritsSet="VisualStudio" inheritsScope="text/plain" scope="application/xml" />
-          <XmlFormattingPolicy inheritsSet="Mono" inheritsScope="application/xml" scope="application/xml" />
-          <TextStylePolicy FileWidth="120" TabsToSpaces="False" inheritsSet="VisualStudio" inheritsScope="text/plain" scope="text/plain" />
+          <TextStylePolicy FileWidth="120" TabWidth="4" TabsToSpaces="False" IndentWidth="4" RemoveTrailingWhitespace="True" NoTabsAfterNonTabs="False" EolMarker="Native" scope="application/xml" />
+          <XmlFormattingPolicy scope="application/xml">
+            <DefaultFormat OmitXmlDeclaration="False" NewLineChars="&#xA;" IndentContent="True" ContentIndentString="&#x9;" AttributesInNewLine="False" MaxAttributesPerLine="10" AttributesIndentString="&#x9;" WrapAttributes="False" AlignAttributes="False" AlignAttributeValues="False" QuoteChar="&quot;" SpacesBeforeAssignment="0" SpacesAfterAssignment="0" EmptyLinesBeforeStart="0" EmptyLinesAfterStart="0" EmptyLinesBeforeEnd="0" EmptyLinesAfterEnd="0" />
+          </XmlFormattingPolicy>
+          <TextStylePolicy FileWidth="120" TabWidth="4" TabsToSpaces="False" IndentWidth="4" RemoveTrailingWhitespace="True" NoTabsAfterNonTabs="False" EolMarker="Native" scope="text/plain" />
           <NameConventionPolicy>
             <Rules>
               <NamingRule Name="Namespaces" AffectedEntity="Namespace" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />