ColorPlugin does not work for WPF with net6 (but works for net48)

[snechaev]

🐛 Bug Report

After migrating a WPF project from net48 to net6 the ColorPlugin stopped working - just returns {{DependencyProperty.UnsetValue}} from Convert. The value passed into the Convert is not null of course.

Expected behavior

ColorPlugin should work in the same way as for net48.

Reproduction steps

1. Take sample project
   TipCalc.zip
2. Run project with net48 and observe red TextBlock under the "Tip to leave" (converter working)
3. Run project with net6 and see no red color on TextBlock - converter does not work

Configuration

Version: 8.0.2 (MvvmCross 8.0.2 + MvvmCross.Plugin.Color 8.0.2)

Platform:

• 📱 iOS
• 🤖 Android
• 🏁 WPF
• 🌎 UWP
• 🍎 MacOS
• 📺 tvOS
• 🐒 Xamarin.Forms

Additional information
After quick research I found that IMvxNativeColor is not registered for net6 build, and is registered for net48

[snechaev]

Possible temporary workaround

• Grab IMvxNativeColor implementation for WPF from here (link to the version 8.0.2, you may need to choose other version to match mvvmCross version):
  https://github.com/MvvmCross/MvvmCross/blob/8.0.2/MvvmCross.Plugins/Color/Platforms/Wpf/MvxWpfColor.cs
• Include MvxWpfColor.cs in WPF project (not Core)
• In the setup class (which is registered with RegisterSetupType and inherits MvxWpfSetup) in the InitializeLastChance override add the manual registration

Mvx.IoCProvider.RegisterSingleton<IMvxNativeColor>(() => new MvvmCross.Plugin.Color.Platforms.Wpf.MvxWpfColor());