Всё-таки не конец, надо ещё кнопки починить...

Pf2eDataScrapper/WPF/ProgressForm/ProgressForm.xaml.cs

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+using System;
+using System.Collections.ObjectModel;
+using System.Drawing;
+using System.Windows;
+using Pf2eDataScrapper.Helpers;
+
+namespace Pf2eDataScrapper.WPF.ProgressForm;
+
+/// <summary>
+/// Логика взаимодействия для ProgressFormWpf.xaml
+/// </summary>
+internal partial class ProgressForm : Window
+{
+    public ProcessProgress Progress { get; }
+
+    public ObservableCollection<ListViewRow> ViewRows { get; set; } = [];
+
+    public ProgressForm(ProcessProgress progress)
+    {
+        Progress = progress;
+
+        InitializeComponent();
+
+        Progress.ProgressUpdate += Progress_ProgressUpdate;
+        Progress.ProgressMessage += Progress_ProgressMessage;
+        Progress.ProgressComplete += Progress_ProgressComplete;
+    }
+
+
+    private void Progress_ProgressUpdate(ProcessProgress sender)
+    {
+        if (!Dispatcher.CheckAccess())
+        {
+            Dispatcher.Invoke(() => Progress_ProgressUpdate(sender));
+            return;
+        }
+
+        ProcessorsLabel.Content = sender.Processors.ToString();
+        ProcessorsProgressBar.Maximum = sender.Processors.Count;
+        ProcessorsProgressBar.Value = sender.Processors.Current;
+
+        LocalLabel.Content = sender.Local.ToString();
+        LocalProgressBar.Maximum = sender.Local.Count;
+        LocalProgressBar.Value = sender.Local.Current;
+    }
+
+    private void Progress_ProgressMessage(ProcessProgress sender, LogLevel level, string message)
+    {
+        if (!Dispatcher.CheckAccess())
+        {
+            Dispatcher.Invoke(() => Progress_ProgressMessage(sender, level, message));
+            return;
+        }
+
+        ListViewRow item = new(level, message) { IsVisible = true };
+
+        ViewRows.Add(item);
+
+        MessageListView.ScrollIntoView(item);
+    }
+    private void Progress_ProgressComplete(ProcessProgress sender)
+    {
+        //(Application.Current as ImportApplication)!.CurrentStage = ApplicationStage.Viewer;
+    }
+
+    public event ImportApplication.ApplicationStateChangeDelegate? ApplicationStateChange;
+}
+
+internal class ListViewRow(LogLevel level, string message)
+{
+    public string Time { get; } = DateTime.Now.ToString("HH:mm:ss.fff");
+
+    public LogLevel Level { get; } = level;
+
+    public string Message { get; } = message;
+
+    public Color Color { get; } =
+        level switch
+        {
+            LogLevel.Important => Color.Salmon,
+            LogLevel.Warning => Color.Khaki,
+            LogLevel.Information => Color.White,
+            LogLevel.Progress => Color.LightGray,
+            _ => Color.White,
+        };
+
+    public bool IsVisible { get; set; } = true;
+}