Use default colors in VS2022.

Current implementation of the plugin GUI uses the legacy approach
for property page implementation, which doesn't allow for
proper theming support. Existing property pages for .NET 4.8 projects
and below exhibit the same behaviour.

Author: drolevar

src/votive.shared/PropertyPages/WixPropertyPagePanel.cs

@@ -43,12 +43,7 @@ public WixPropertyPagePanel(WixPropertyPage parentPropertyPage)
             this.InitializeComponent();
 
             this.Font = WixHelperMethods.GetDialogFont();
-#if Dev17
-             // VS2022 doesn't use theming on property pages
-            this.BackColor = SystemColors.Control;
-#else
             this.BackColor = WixHelperMethods.GetVsColor(WixHelperMethods.Vs2010Color.VSCOLOR_BUTTONFACE);
-#endif
             this.ForeColor = WixHelperMethods.GetVsColor(WixHelperMethods.Vs2010Color.VSCOLOR_BUTTONTEXT);
         }
 

src/votive.shared/WixHelperMethods.cs

@@ -678,8 +678,7 @@ internal static void SetControlTreeColors(Control parent)
         internal static void SetSingleControlColors(Control control)
         {
             control.ForeColor = GetVsColor(Vs2010Color.VSCOLOR_BUTTONTEXT);
-            if (control is TextBox || control is ListBox || control is ListView || control is ComboBox ||
-                control is WixBuildEventTextBox)
+            if (control is TextBox || control is ListBox || control is ListView || control is ComboBox)
             {
                 control.BackColor = GetVsColor(Vs2010Color.VSCOLOR_WINDOW);
             }
@@ -692,20 +691,22 @@ internal static void SetSingleControlColors(Control control)
         /// <returns>The color itself</returns>
         internal static Color GetVsColor(Vs2010Color visualStudioColor)
         {
+#if !Dev17 // VS2022 doesn't support theming for legacy property pages
             uint win32Color = 0;
             IVsUIShell2 vsuiShell2 = WixPackage.GetGlobalService(typeof(SVsUIShell)) as IVsUIShell2;
             if (vsuiShell2 != null && vsuiShell2.GetVSSysColorEx((Int32)visualStudioColor, out win32Color) == VSConstants.S_OK)
             {
                 Color color = ColorTranslator.FromWin32((int)win32Color);
                 return color;
             }
+#endif
 
             // We need to fall back to some reasonable colors when we're not running in VS
             // to keep the forms/property pages editable in the designers
             switch (visualStudioColor)
             {
                 case Vs2010Color.VSCOLOR_BUTTONFACE:
-                    return SystemColors.ButtonFace;
+                    return SystemColors.Control;
 
                 case Vs2010Color.VSCOLOR_BUTTONTEXT:
                     return SystemColors.ControlText;