EarTrumpet: Ear Trumpet 2.1.1.0 crashes on launch on Win 10 Pro

I haven’t been able to use Ear Trumpet for a few months now. Was hoping windows/ear trumpet updates would help, but nothing has changed.

Here’s the error log:

Application: EarTrumpet.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
   at EarTrumpet.UI.Themes.BrushValueParser.Parse(System.Windows.DependencyObject, System.String)
   at EarTrumpet.UI.Themes.ThemeBindingInfo`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetPropertyToDesiredValue(System.Windows.DependencyObject)
   at EarTrumpet.UI.Themes.ThemeBindingInfo`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]..ctor(System.Windows.DependencyObject, System.String, System.String, System.Func`3<System.Windows.DependencyObject,System.String,System.__Canon>)
   at EarTrumpet.UI.Themes.Brush.ImplementPropertyChanged(System.String, System.Windows.DependencyObject, System.Object)
   at EarTrumpet.UI.Themes.Brush.ForegroundChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
   at System.Windows.StyleHelper.ApplyStyleOrTemplateValue(MS.Internal.FrameworkObject, System.Windows.DependencyProperty)
   at System.Windows.StyleHelper.InvalidateContainerDependents(System.Windows.DependencyObject, MS.Utility.FrugalStructList`1<System.Windows.ContainerDependent> ByRef, MS.Utility.FrugalStructList`1<System.Windows.ContainerDependent> ByRef, MS.Utility.FrugalStructList`1<System.Windows.ContainerDependent> ByRef)
   at System.Windows.StyleHelper.DoStyleInvalidations(System.Windows.FrameworkElement, System.Windows.FrameworkContentElement, System.Windows.Style, System.Windows.Style)
   at System.Windows.StyleHelper.UpdateStyleCache(System.Windows.FrameworkElement, System.Windows.FrameworkContentElement, System.Windows.Style, System.Windows.Style, System.Windows.Style ByRef)
   at System.Windows.FrameworkElement.OnStyleChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
   at System.Windows.FrameworkTemplate.ReceivePropertySet(System.Object, System.Xaml.XamlMember, System.Object, System.Windows.DependencyObject)
   at System.Windows.FrameworkTemplate+<>c__DisplayClass45_0.<LoadOptimizedTemplateContent>b__3(System.Object, System.Windows.Markup.XamlSetValueEventArgs)
   at System.Xaml.XamlObjectWriter.OnSetValue(System.Object, System.Xaml.XamlMember, System.Object)
   at System.Xaml.XamlObjectWriter.Logic_ApplyPropertyValue(MS.Internal.Xaml.Context.ObjectWriterContext, System.Xaml.XamlMember, System.Object, Boolean)
   at System.Xaml.XamlObjectWriter.Logic_DoAssignmentToParentProperty(MS.Internal.Xaml.Context.ObjectWriterContext)
   at System.Xaml.XamlObjectWriter.WriteEndObject()
   at System.Xaml.XamlWriter.WriteNode(System.Xaml.XamlReader)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(System.Xaml.XamlReader, System.Xaml.XamlObjectWriter)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(System.Xaml.XamlObjectWriter)
   at System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(System.Windows.DependencyObject, System.Windows.Markup.IComponentConnector, System.Windows.Markup.IStyleConnector, System.Collections.Generic.List`1<System.Windows.DependencyObject>, System.Windows.UncommonField`1<System.Collections.Hashtable>)
   at System.Windows.FrameworkTemplate.LoadContent(System.Windows.DependencyObject, System.Collections.Generic.List`1<System.Windows.DependencyObject>)
   at System.Windows.StyleHelper.ApplyTemplateContent(System.Windows.UncommonField`1<System.Collections.Specialized.HybridDictionary[]>, System.Windows.DependencyObject, System.Windows.FrameworkElementFactory, Int32, System.Collections.Specialized.HybridDictionary, System.Windows.FrameworkTemplate)
   at System.Windows.FrameworkTemplate.ApplyTemplateContent(System.Windows.UncommonField`1<System.Collections.Specialized.HybridDictionary[]>, System.Windows.FrameworkElement)
   at System.Windows.FrameworkElement.ApplyTemplate()
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Grid.MeasureCell(Int32, Boolean)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32, System.Windows.Size, Boolean, Boolean, Boolean ByRef)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32, System.Windows.Size, Boolean, Boolean)
   at System.Windows.Controls.Grid.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Grid.MeasureCell(Int32, Boolean)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32, System.Windows.Size, Boolean, Boolean, Boolean ByRef)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32, System.Windows.Size, Boolean, Boolean)
   at System.Windows.Controls.Grid.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Border.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at MS.Internal.Helper.MeasureElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Control.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Grid.MeasureCell(Int32, Boolean)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32, System.Windows.Size, Boolean, Boolean, Boolean ByRef)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32, System.Windows.Size, Boolean, Boolean)
   at System.Windows.Controls.Grid.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at MS.Internal.Helper.MeasureElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Border.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Control.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at MS.Internal.Helper.MeasureElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.StackPanel.StackMeasureHelper(System.Windows.Controls.IStackMeasure, System.Windows.Controls.IStackMeasureScrollData, System.Windows.Size)
   at System.Windows.Controls.StackPanel.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.UIElement.UpdateLayout()
   at EarTrumpet.UI.Views.FlyoutWindow.UpdateWindowBounds()
   at EarTrumpet.UI.Views.FlyoutWindow.ViewModel_WindowSizeInvalidated(System.Object, System.Object)
   at System.EventHandler`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].Invoke(System.Object, System.__Canon)
   at EarTrumpet.UI.ViewModels.FlyoutViewModel.<InvalidateWindowSize>b__47_0()
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(System.Object)
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Application.RunDispatcher(System.Object)
   at System.Windows.Application.RunInternal(System.Windows.Window)
   at System.Windows.Application.Run(System.Windows.Window)
   at EarTrumpet.App.Main()