how to modify the color of Goback Button

Question

I create a project for Store App using C++/XAML.

In the default project, background color is black, and text color and Goback button is White.

I want to modify those colors. For example, background is white, text and Goback button is black.

I can modify the color of background and text color easily.

But I cannot modify the color of the GoBack button.

The Goback button has Style="{StaticResource BackButtonStyle}".

Do I need to modify  StandardStyle.xaml ??

Please advice !

---

kata.

Answer 1

- The GoBack button uses indeed the Style you mention.
- You can modify part of this Style as follows:

<Page
    x:Class="App6.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:App6"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Button Style="{StaticResource BackButtonStyle}" Background="Green" Foreground="Orange"/>
    </Grid>
</Page>

-

In StandardStyle.xaml:

1.- Basic Colors

    <Style x:Key="BackButtonStyle" TargetType="Button">
        <Setter Property="MinWidth" Value="0"/>
        <Setter Property="Width" Value="48"/>
        <Setter Property="Height" Value="48"/>
        <Setter Property="Margin" Value="36,0,36,36"/>
        <Setter Property="VerticalAlignment" Value="Bottom"/>
        <Setter Property="FontFamily" Value="Segoe UI Symbol"/>
        <Setter Property="FontWeight" Value="Normal"/>
        <Setter Property="FontSize" Value="56"/>
        <Setter Property="AutomationProperties.AutomationId" Value="BackButton"/>
        <Setter Property="AutomationProperties.Name" Value="Back"/>
        <Setter Property="AutomationProperties.ItemType" Value="Navigation Button"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Grid x:Name="RootGrid" Background="Red">
                        <Grid Margin="-1,-16,0,0">
                            <TextBlock x:Name="BackgroundGlyph" Text="&#xE0A8;" Foreground="{TemplateBinding Background}"/>
                            <TextBlock x:Name="NormalGlyph" Text="{StaticResource BackButtonGlyph}" Foreground="{TemplateBinding Foreground}"/>
                            <TextBlock x:Name="ArrowGlyph" Text="&#xE0A6;" Foreground="{TemplateBinding Foreground}" Opacity="0"/>
                        </Grid>
...

---

2.- VSM State-based colors: the VisualStateManager in the Style definition uses the 3 TextBlocks in order to obtain the correct visual effect when PointerOver, etc. So you will also have to adapt parts of the VSM like in:

<VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal" />
                                <VisualState x:Name="PointerOver">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Blue"/>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="NormalGlyph" Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource BackButtonPointerOverForegroundThemeBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
...

If you don't want to do this in StandardStyle.xaml, you can move your new style into a LocalStyle.xaml.

---

Here is a complete example for you to tune:

<Application
    x:Class="App6.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:App6">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>

                <!-- 
                    Styles that define common aspects of the platform look and feel
                    Required by Visual Studio project and item templates
                 -->
                <ResourceDictionary Source="Common/LocalStyles.xaml"/>
                <ResourceDictionary Source="Common/StandardStyles.xaml"/>
            </ResourceDictionary.MergedDictionaries>

        </ResourceDictionary>
    </Application.Resources>
</Application>

- LocalStyles.xaml

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Style x:Key="MyBackButtonStyle" TargetType="Button">
        <Setter Property="MinWidth" Value="0"/>
        <Setter Property="Width" Value="48"/>
        <Setter Property="Height" Value="48"/>
        <Setter Property="Margin" Value="36,0,36,36"/>
        <Setter Property="VerticalAlignment" Value="Bottom"/>
        <Setter Property="FontFamily" Value="Segoe UI Symbol"/>
        <Setter Property="FontWeight" Value="Normal"/>
        <Setter Property="FontSize" Value="56"/>
        <Setter Property="AutomationProperties.AutomationId" Value="BackButton"/>
        <Setter Property="AutomationProperties.Name" Value="Back"/>
        <Setter Property="AutomationProperties.ItemType" Value="Navigation Button"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Grid x:Name="RootGrid" Background="Red">
                        <Grid Margin="-1,-16,0,0">
                            <TextBlock x:Name="BackgroundGlyph" Text="&#xE0A8;" Foreground="{TemplateBinding Background}"/>
                            <TextBlock x:Name="NormalGlyph" Text="{StaticResource BackButtonGlyph}" Foreground="{TemplateBinding Foreground}"/>
                            <TextBlock x:Name="ArrowGlyph" Text="&#xE0A6;" Foreground="{TemplateBinding Foreground}" Opacity="0"/>
                        </Grid>
                        <Rectangle
                            x:Name="FocusVisualWhite"
                            IsHitTestVisible="False"
                            Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}"
                            StrokeEndLineCap="Square"
                            StrokeDashArray="1,1"
                            Opacity="0"
                            StrokeDashOffset="1.5"/>
                        <Rectangle
                            x:Name="FocusVisualBlack"
                            IsHitTestVisible="False"
                            Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}"
                            StrokeEndLineCap="Square"
                            StrokeDashArray="1,1"
                            Opacity="0"
                            StrokeDashOffset="0.5"/>

                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal" />
                                <VisualState x:Name="PointerOver">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Blue"/>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="NormalGlyph" Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource BackButtonPointerOverForegroundThemeBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Pressed">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource BackButtonForegroundThemeBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimation
                                            Storyboard.TargetName="ArrowGlyph"
                                            Storyboard.TargetProperty="Opacity"
                                            To="1"
                                            Duration="0"/>
                                        <DoubleAnimation
                                            Storyboard.TargetName="NormalGlyph"
                                            Storyboard.TargetProperty="Opacity"
                                            To="0"
                                            Duration="0"/>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid" Storyboard.TargetProperty="Visibility">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="FocusStates">
                                <VisualState x:Name="Focused">
                                    <Storyboard>
                                        <DoubleAnimation
                                            Storyboard.TargetName="FocusVisualWhite"
                                            Storyboard.TargetProperty="Opacity"
                                            To="1"
                                            Duration="0"/>
                                        <DoubleAnimation
                                            Storyboard.TargetName="FocusVisualBlack"
                                            Storyboard.TargetProperty="Opacity"
                                            To="1"
                                            Duration="0"/>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Unfocused" />
                                <VisualState x:Name="PointerFocused" />
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

-

<Page
    x:Class="App6.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:App6"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Button Style="{StaticResource MyBackButtonStyle}" Background="Green" Foreground="Orange"/>
    </Grid>
</Page>

-

Answer 2

Hi ForInfo,

Thank you for the comment.

I will check this later.

I suppose this should work..

Sorry, I'm working on different project currently..

---

kata.