RadioButton's MouseOver/Pressed/Disabled Foreground is always the theme's foreground color

[shinywong]

Describe the bug

In MahApps.Metro v2.0.0, RadioButton's MouseOver/Pressed/Disabled Foreground is always the theme's foreground color. That is, set RadioButton's Foreground won't change its MouseOver/Pressed/Disabled Foreground. Unlike CheckBox, RadioButton doesn't have properties like "CheckBoxHelper.ForegroundCheckedMouseOver", so I don't know how to change these colors.

Environment

MahApps.Metro version: v2.0.0
Windows build number: Win10 2004 [Version 10.0.19041.264]
Visual Studio: 2019 16.6.1
Target Framework: .NET Framework v4.8

[timunie]

Hi @shinywong
at the moment you have to overrdide the Brushes on your own:
here are the Brushes:

MahApps.Metro/src/MahApps.Metro/Styles/Themes/Theme.Template.xaml

Lines 446 to 481 in 2e39545

	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.Foreground" ResourceKey="MahApps.Brushes.SystemControlForegroundBaseHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.ForegroundPointerOver" ResourceKey="MahApps.Brushes.SystemControlForegroundBaseHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.ForegroundPressed" ResourceKey="MahApps.Brushes.SystemControlForegroundBaseHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.ForegroundDisabled" ResourceKey="MahApps.Brushes.SystemControlDisabledBaseMediumLow" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.Background" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BackgroundPointerOver" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BackgroundPressed" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BackgroundDisabled" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BorderBrush" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BorderBrushPointerOver" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BorderBrushPressed" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.BorderBrushDisabled" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseStroke" ResourceKey="MahApps.Brushes.SystemControlForegroundBaseMediumHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseStrokePointerOver" ResourceKey="MahApps.Brushes.SystemControlHighlightBaseHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseStrokePressed" ResourceKey="MahApps.Brushes.SystemControlHighlightBaseMedium" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseStrokeDisabled" ResourceKey="MahApps.Brushes.SystemControlDisabledBaseMediumLow" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseFill" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseFillPointerOver" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseFillPressed" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseFillDisabled" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedStroke" ResourceKey="MahApps.Brushes.SystemControlHighlightAccent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedStrokePointerOver" ResourceKey="MahApps.Brushes.SystemControlHighlightAccent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedStrokePressed" ResourceKey="MahApps.Brushes.SystemControlHighlightBaseMedium" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedStrokeDisabled" ResourceKey="MahApps.Brushes.SystemControlDisabledBaseMediumLow" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedFill" ResourceKey="MahApps.Brushes.SystemControlHighlightAltTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedFillPointerOver" ResourceKey="MahApps.Brushes.SystemControlHighlightTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedFillPressed" ResourceKey="MahApps.Brushes.SystemControlHighlightTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.OuterEllipseCheckedFillDisabled" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphFill" ResourceKey="MahApps.Brushes.SystemControlHighlightBaseMediumHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphFillPointerOver" ResourceKey="MahApps.Brushes.SystemControlHighlightAltBaseHigh" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphFillPressed" ResourceKey="MahApps.Brushes.SystemControlHighlightAltBaseMedium" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphFillDisabled" ResourceKey="MahApps.Brushes.SystemControlDisabledBaseMediumLow" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphStroke" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphStrokePointerOver" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphStrokePressed" ResourceKey="MahApps.Brushes.SystemControlTransparent" />
	<markup:StaticResource x:Key="MahApps.Brushes.RadioButton.CheckGlyphStrokeDisabled" ResourceKey="MahApps.Brushes.SystemControlTransparent" />

Example:

<!-- Place this in your Resources, e.g. in App.xaml to override globally -->
<SolidColorBrush x:Key="MahApps.Brushes.RadioButton.ForegroundPointerOver" Color="{DynamicResource MahApps.Colors.Accent}" />

Happy coding
Tim

[shinywong]

@timunie
Thank you for the quick reply.
It works.
And I want to know, it is possible to use different colors for Checked/Unchecked?

[webprofusion-chrisc]

RadioButton obviously isn't checkbox but is this related to the issue I'm seeing where dark theme checkboxes don't show the checked mark unless you hover? Shows up on Server 2012 R2 desktop. The checkboxes in this image are checked, but they don't look it until the theme is set back to light.

[Edit: created new issue, seems restricted to DataGrid]