new project: only use left mouse to select templates (not right or middle)

Author: unitycoder

UnityLauncherPro/NewProject.xaml

@@ -89,9 +89,9 @@
                             <Button x:Name="btnAuthorizeToken" Style="{StaticResource CustomButton}" Content="Authorize" ToolTip="Open Github to create a token" Height="22" HorizontalAlignment="Right" VerticalAlignment="Top"  Margin="6,4,0,0"   IsEnabled="False" Width="60" Click="btnAuthorizeToken_Click" />
                             <Button x:Name="btnDisconnectToken" Style="{StaticResource CustomButton}" Content="Disconnect" ToolTip="Disconnect from Github AND delete saved token" Height="22" HorizontalAlignment="Right" VerticalAlignment="Top"  Margin="6,4,0,0"   IsEnabled="False" Width="64" Visibility="Collapsed" Click="btnDisconnectToken_Click" />
                         </StackPanel>
-                        
+
                         <CheckBox x:Name="chkEnableVersionControl" Content="Enable Version Control" Foreground="{DynamicResource ThemeButtonForeground}" Margin="0,6,0,6" VerticalAlignment="Center" Checked="chkEnableVersionControl_Checked" Unchecked="chkEnableVersionControl_Checked"/>
-                        
+
                         <Grid Margin="0,0,0,0">
                             <Grid.ColumnDefinitions>
                                 <ColumnDefinition Width="120"/>
@@ -105,7 +105,7 @@
                                 <Label Content="🌐" Foreground="#FF009CFF"/>
                             </StackPanel>
                         </Grid>
-                        
+
                         <StackPanel Orientation="Horizontal" Margin="0,4,0,0">
                             <CheckBox x:Name="chkEnableOrgs" Content="Organization:" ToolTip="Enable Large File Storage and add .gitattributes" Foreground="{DynamicResource ThemeButtonForeground}" Margin="0,8,0,0" VerticalAlignment="Center" IsChecked="True" Checked="chkEnableOrgs_Checked" Unchecked="chkEnableOrgs_Checked"/>
                             <ComboBox x:Name="cmbGithubOrgs" Margin="6,0,0,0" TabIndex="2" VerticalAlignment="Top" HorizontalAlignment="Left" SelectionChanged="cmbGithubOrgs_SelectionChanged" />
@@ -141,7 +141,7 @@
                         </StackPanel>
                         <StackPanel Orientation="Horizontal" Margin="0,0,0,0">
                         </StackPanel>
-                       
+
                     </StackPanel>
 
                 </Grid>

UnityLauncherPro/NewProject.xaml.cs

@@ -987,6 +987,14 @@ private List<OnlineTemplateItem> ParseTemplatesFromJson(string json)
 
         private void listOnlineTemplates_PreviewMouseDown(object sender, MouseButtonEventArgs e)
         {
+            // only left mouse button
+            if (e.ChangedButton != MouseButton.Left)
+            {
+                // eat the event
+                e.Handled = true;
+                return;
+            }
+
             // Get the item that was clicked
             var listBox = sender as ListBox;
             if (listBox == null) return;