anchor.diff:  /// Trees of Flutter diagnostics can be very large so filtering the diagnostics
   /// shown matters. Typically filtering to only show diagnostics with at least
   /// level [debug] is appropriate.
  +///
  +/// In release mode, this level may not have any effect, as diagnostics in
  +/// release mode are compacted or truncated to reduce binary size.
   enum DiagnosticLevel {
     /// Diagnostics that should not be shown.
     ///
  
positive.code:   ///
    /// `minLevel` specifies the minimum [DiagnosticLevel] for properties included
    /// in the output.
    @override
    String toString({
      TextTreeConfiguration parentConfiguration,
  
negative.code: 
  /// Configuration specifying how a particular [DiagnosticsTreeStyle] should be
  /// rendered as text art.
  ///
  /// In release mode, these configurations may be ignored, as diagnostics are
  /// compacted or truncated to save on binary size.
  ///
  /// See also:
  ///
  