anchor.diff:        | Module _ | ActivePatternCase | Record _ | Union _ | TypeAbbreviation | Class _ -> style.UserTypes
         | Namespace _ -> style.PlainText
         | Property fromDef -> if fromDef then style.UserPropertyDeclaration else style.UserPropertyUsage
  -      | Field (fromDef,isMut) ->
  +      | Field (fromDef, isMut) ->
           if highlightMutable isMut then style.UserTypesMutable
           elif fromDef then style.UserFieldDeclaration
           else style.UserFieldUsage
   
         | Function fromDef -> if fromDef then style.UserMethodDeclaration else style.UserMethodUsage
  -      | Val (fromDef,isMut) ->
  +      | Val (fromDef, isMut) ->
           if highlightMutable isMut then style.UserTypesMutable
           elif fromDef then style.UserFieldDeclaration
           else style.UserFieldUsage
  
positive.code:     match ts with
      | IdentifierSymbol symbolUse -> 
        match symbolUse with
        | SymbolUse.Val v -> Some (symbolUse.IsFromDefinition, v.IsMutable)
        | _ -> None
      | _ -> None
    
  
negative.code:     match ts with
      | IdentifierSymbol symbolUse -> 
        match symbolUse with
        | SymbolUse.Field f -> Some (symbolUse.IsFromDefinition, not f.DeclaringEntity.IsEnum && f.IsMutable)
        | _ -> None
      | _ -> None
    
  