Add donate button

ReadMe.md

@@ -33,6 +33,7 @@ A Windows desktop application for validating ROM files against DAT files and gen
 - **Fluent Dark Theme**: Modern dark UI built on WPF-UI (Windows 11 style)
 - **Screenshot Capture**: Press **F8** to save a screenshot of the active window to the `Screenshot\` folder next to the executable (falling back to `%LOCALAPPDATA%\ROM Validator\Screenshot` when the application folder is read-only)
 - **App Data Button**: the **App Data** button in the top-right corner opens `%LOCALAPPDATA%\ROM Validator` in Explorer — logs (`Logs\`) and fallback screenshots (`Screenshot\`) live there, always writable even when installed under Program Files
+- **Donate Button**: the **Donate** button in the top-right corner (next to **About**) opens the [donation page](https://www.purelogiccode.com/donate) in your default browser
 - **Version Checking**: Automatic GitHub version checking at startup, with a prompt to open the release page when an update is available
 - **Robust Error Handling**: Retry-based temp-directory cleanup, binary-format detection for wrongly selected DAT files, and automatic bug reports (Serilog) — all Warning, Error, and Fatal events are forwarded to the bug report API
 

RomValidator/MainWindow.xaml

@@ -34,6 +34,7 @@
 
                 <StackPanel Grid.Column="2" Orientation="Horizontal">
                     <Button x:Name="OpenAppDataButton" Content="App Data" Click="OpenAppData_Click" Style="{StaticResource MenuButtonGrayStyle}" ToolTip="Open the application data folder (logs and fallback screenshots)" />
+                    <Button x:Name="DonateButton" Content="Donate" Click="Donate_Click" Style="{StaticResource MenuButtonGrayStyle}" ToolTip="Support the developer (opens the donation page)" />
                     <Button Content="About" Click="About_Click" Style="{StaticResource MenuButtonPurpleStyle}" ToolTip="View application information" />
                     <Button Content="Exit" Click="Exit_Click" Style="{StaticResource MenuButtonGrayStyle}" ToolTip="Close the application" />
                 </StackPanel>

RomValidator/MainWindow.xaml.cs

@@ -158,6 +158,31 @@ private void GenerateDat_Click(object sender, RoutedEventArgs e)
         }
     }
 
+    /// <summary>
+    /// Handles the "Donate" header button: opens the donation page in the default browser.
+    /// </summary>
+    private void Donate_Click(object sender, RoutedEventArgs e)
+    {
+        try
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = "https://www.purelogiccode.com/donate",
+                UseShellExecute = true
+            });
+            UpdateStatusBarMessage("Opened donation page: https://www.purelogiccode.com/donate");
+        }
+        catch (Exception ex)
+        {
+            LoggerService.LogException("MainWindow", ex, "Error opening donation page");
+            MessageBox.Show(
+                "Could not open the donation page.\n\nYou can visit it here:\nhttps://www.purelogiccode.com/donate",
+                "Donate",
+                MessageBoxButton.OK,
+                MessageBoxImage.Information);
+        }
+    }
+
     /// <summary>
     /// Handles the "About" header button: opens the About window.
     /// </summary>

docs/getting-started.md

@@ -41,7 +41,7 @@ start the application again.
 When the application starts you will see:
 
 - the **Validate ROMs** and **Generate DAT** tabs in the header,
-- the **App Data**, **About** and **Exit** buttons on the right,
+- the **App Data**, **Donate**, **About** and **Exit** buttons on the right,
 - a status bar at the bottom that reports what the application is doing.
 
 The application checks GitHub for a newer release on every launch. If an update is available you