App.xaml

<navigation:BootStrapper x:Class="Telegram.App"
                         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                         xmlns:muxc="using:Microsoft.UI.Xaml.Controls"
                         xmlns:media="using:Microsoft.UI.Xaml.Media"
                         xmlns:common="using:Telegram.Common"
                         xmlns:converters="using:Telegram.Converters"
                         xmlns:navigation="using:Telegram.Navigation"
                         xmlns:themes="using:Telegram.Themes">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.ThemeDictionaries>
                <ResourceDictionary x:Key="Default">
                    <SolidColorBrush x:Key="TitleBarButtonBackgroundPointerOver">#19FFFFFF</SolidColorBrush>
                    <SolidColorBrush x:Key="TitleBarButtonBackgroundPressed">#33FFFFFF</SolidColorBrush>

                    <StaticResource x:Key="SettingsItemBorderBrush"
                                    ResourceKey="CardStrokeColorDefaultBrush" />
                    <StaticResource x:Key="SettingsItemBackground"
                                    ResourceKey="CardBackgroundFillColorDefaultBrush" />
                    <StaticResource x:Key="SettingsItemBackgroundPointerOver"
                                    ResourceKey="ControlFillColorSecondaryBrush" />
                    <StaticResource x:Key="SettingsItemBackgroundPressed"
                                    ResourceKey="ControlFillColorTertiaryBrush" />
                    <StaticResource x:Key="SettingsPageBackground"
                                    ResourceKey="SystemControlTransparentBrush" />

                    <media:AcrylicBrush x:Key="PageSubHeaderBackgroundBrush2"
                                        TintColor="#2C2C2C"
                                        TintOpacity="0.15"
                                        TintLuminosityOpacity="1"
                                        FallbackColor="#2C2C2C"
                                        BackgroundSource="Backdrop" />

                    <media:AcrylicBrush x:Key="AcrylicToastFillColorBaseBrush"
                                        FallbackColor="#1C1C1C"
                                        TintColor="#202020"
                                        TintLuminosityOpacity="0.96"
                                        TintOpacity="0.5"
                                        BackgroundSource="Backdrop"  />

                    <LinearGradientBrush x:Key="SystemGradientColorCriticalBrush"
                                         StartPoint="0,0"
                                         EndPoint="1,0">
                        <LinearGradientBrush.GradientStops>
                            <GradientStop Color="#FF442726"
                                          Offset="0.5" />
                            <GradientStop Color="#00442726"
                                          Offset="0" />
                        </LinearGradientBrush.GradientStops>
                    </LinearGradientBrush>
                </ResourceDictionary>
                <ResourceDictionary x:Key="Light">
                    <SolidColorBrush x:Key="TitleBarButtonBackgroundPointerOver">#19000000</SolidColorBrush>
                    <SolidColorBrush x:Key="TitleBarButtonBackgroundPressed">#33000000</SolidColorBrush>

                    <StaticResource x:Key="SettingsItemBorderBrush"
                                    ResourceKey="CardStrokeColorDefaultBrush" />
                    <StaticResource x:Key="SettingsItemBackground"
                                    ResourceKey="CardBackgroundFillColorDefaultBrush" />
                    <StaticResource x:Key="SettingsItemBackgroundPointerOver"
                                    ResourceKey="ControlFillColorSecondaryBrush" />
                    <StaticResource x:Key="SettingsItemBackgroundPressed"
                                    ResourceKey="ControlFillColorTertiaryBrush" />
                    <StaticResource x:Key="SettingsPageBackground"
                                    ResourceKey="SystemControlTransparentBrush" />

                    <media:AcrylicBrush x:Key="PageSubHeaderBackgroundBrush2"
                                        TintColor="#FCFCFC"
                                        TintOpacity="0.0"
                                        TintLuminosityOpacity="1"
                                        FallbackColor="#F9F9F9"
                                        BackgroundSource="Backdrop" />

                    <media:AcrylicBrush x:Key="AcrylicToastFillColorBaseBrush"
                                        FallbackColor="#EEEEEE"
                                        TintColor="#F3F3F3"
                                        TintLuminosityOpacity="0.9"
                                        TintOpacity="0"
                                        BackgroundSource="Backdrop" />

                    <LinearGradientBrush x:Key="SystemGradientColorCriticalBrush"
                                         StartPoint="0,0"
                                         EndPoint="1,0">
                        <LinearGradientBrush.GradientStops>
                            <GradientStop Color="#FFF9EAE8"
                                          Offset="0.5" />
                            <GradientStop Color="#00F9EAE8"
                                          Offset="0" />
                        </LinearGradientBrush.GradientStops>
                    </LinearGradientBrush>
                </ResourceDictionary>
            </ResourceDictionary.ThemeDictionaries>

            <AcrylicBrush x:Name="GlassAcrylicBackground"
                          TintColor="#FFFFFF"
                          TintOpacity="0"
                          FallbackColor="#64FFFFFF" />

            <!-- WinUI bug: https://github.com/microsoft/microsoft-ui-xaml/issues/xxxx -->
            <x:Boolean x:Key="HyperlinkUnderlineVisible">True</x:Boolean>

            <x:Boolean x:Key="ListViewItemSelectionIndicatorVisualEnabled">True</x:Boolean>

            <!-- WinUI bug: https://github.com/microsoft/microsoft-ui-xaml/issues/2623 -->
            <!--<muxc:StackLayout x:Name="ThreadStackLayout"/>-->

            <media:RadialGradientBrush x:Key="VideoChatPurpleBrush"
                                       GradientOrigin="1,-1"
                                       Center="1,-1"
                                       RadiusX="1.5"
                                       RadiusY="2.5">
                <GradientStop Color="#57A4FE"
                              Offset="0" />
                <GradientStop Color="#F05459"
                              Offset="0.5" />
                <GradientStop Color="#766EE9"
                              Offset="1" />
            </media:RadialGradientBrush>

            <x:Double x:Key="ChatPhotoSize">36</x:Double>
            <x:Double x:Key="AppBarThemeCompactHeight">48</x:Double>
            <x:Double x:Key="NavigationViewTopPaneHeight">48</x:Double>

            <x:Double x:Key="GlyphSmallFontSize">16</x:Double>
            <x:Double x:Key="GlyphMediumFontSize">20</x:Double>
            <x:Double x:Key="GlyphLargeFontSize">24</x:Double>
            <Thickness x:Key="GlyphButtonPadding">4</Thickness>
            <CornerRadius x:Key="GlyphButtonCornerRadius">4</CornerRadius>

            <Style x:Key="DefaultListViewItemStyle"
                   TargetType="ListViewItem"
                   BasedOn="{StaticResource DefaultListViewItemStyle}">
                <Setter Property="HorizontalContentAlignment"
                        Value="Stretch" />
                <Setter Property="Padding"
                        Value="0" />
            </Style>

            <Style TargetType="ListViewItem"
                   BasedOn="{StaticResource DefaultListViewItemStyle}" />

            <SolidColorBrush x:Key="GridViewItemCheckBrush"
                             Color="White" />

            <x:Double x:Key="PaneToggleButtonSize">48</x:Double>
            <Thickness x:Key="NavigationViewToggleBorderThickness">1</Thickness>
            <Thickness x:Key="NavigationViewItemBorderThickness">2,1</Thickness>

            <Style x:Key="BaseTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BaseTextBlockStyle}">
                <Setter Property="FontFamily"
                        Value="{ThemeResource EmojiThemeFontFamily}" />
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
            </Style>

            <Style x:Key="BodyTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BodyTextBlockStyle}">
                <Setter Property="FontFamily"
                        Value="{ThemeResource EmojiThemeFontFamily}" />
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
            </Style>

            <!--<Style x:Key="CaptionTextBlockStyle" TargetType="TextBlock" BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
            </Style>-->

            <Style x:Key="CaptionRichTextBlockStyle"
                   TargetType="RichTextBlock"
                   BasedOn="{StaticResource BaseRichTextBlockStyle}">
                <Setter Property="FontFamily"
                        Value="{ThemeResource EmojiThemeFontFamily}" />
                <Setter Property="FontSize"
                        Value="12" />
                <Setter Property="FontWeight"
                        Value="Normal" />
            </Style>

            <Style x:Key="InfoCaptionRichTextBlockStyle"
                   TargetType="RichTextBlock"
                   BasedOn="{StaticResource CaptionRichTextBlockStyle}">
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style TargetType="PivotItem">
                <Setter Property="Margin"
                        Value="0" />
            </Style>

            <FontFamily x:Key="TelegramThemeFontFamily">ms-appx:///Assets/Fonts/Telegram.ttf#Telegram</FontFamily>
            <FontFamily x:Key="SymbolThemeFontFamily">ms-appx:///Assets/Fonts/Telegram.ttf#Telegram</FontFamily>
            <FontFamily x:Key="SpoilerFontFamily">ms-appx:///Assets/Emoji/spoiler.ttf#Segoe UI Emoji</FontFamily>

            <x:Double x:Key="TelegramLightMediaMaxWidth">180</x:Double>
            <x:Double x:Key="TelegramLightMediaMaxHeight">180</x:Double>

            <x:Double x:Key="TelegramMediaMaxWidth">420</x:Double>
            <x:Double x:Key="TelegramMediaMaxHeight">420</x:Double>

            <x:Double x:Key="TelegramMediaMinWidth">96</x:Double>
            <x:Double x:Key="TelegramMediaMinHeight">96</x:Double>

            <x:Int32 x:Key="ChatTitleMaxLength">255</x:Int32>
            <x:Int32 x:Key="ChannelTitleMaxLength">255</x:Int32>
            <x:Int32 x:Key="ChannelAboutMaxLength">255</x:Int32>
            <x:Int32 x:Key="UserFirstNameMaxLength">255</x:Int32>
            <x:Int32 x:Key="UserLastNameMaxLength">255</x:Int32>

            <converters:FileTypeToStringConverter x:Key="FileTypeToStringConverter" />
            <converters:MessageTtlConverter x:Key="MessageTtlConverter" />
            <converters:BooleanNegationConverter x:Key="BooleanNegationConverter" />
            <converters:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
            <converters:NullToVisibilityConverter x:Key="NullToVisibilityConverter" />
            <converters:FileSizeConverter x:Key="FileSizeConverter" />

            <SolidColorBrush x:Key="Placeholder0Brush"
                             Color="#E56555" />
            <SolidColorBrush x:Key="Placeholder1Brush"
                             Color="#F28C48" />
            <SolidColorBrush x:Key="Placeholder2Brush"
                             Color="#8E85EE" />
            <SolidColorBrush x:Key="Placeholder3Brush"
                             Color="#76C84D" />
            <SolidColorBrush x:Key="Placeholder4Brush"
                             Color="#5FBED5" />
            <SolidColorBrush x:Key="Placeholder5Brush"
                             Color="#549CDD" />
            <SolidColorBrush x:Key="Placeholder6Brush"
                             Color="#F2749A" />

            <Style x:Key="PopupTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BaseTextBlockStyle}">
                <Setter Property="FontFamily"
                        Value="{ThemeResource EmojiThemeFontFamily}" />
                <Setter Property="FontSize"
                        Value="20" />
                <Setter Property="FontWeight"
                        Value="SemiBold" />
            </Style>

            <Style x:Key="CaptionTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="FontFamily"
                        Value="{ThemeResource EmojiThemeFontFamily}" />
                <Setter Property="FontSize"
                        Value="12" />
                <Setter Property="FontWeight"
                        Value="Normal" />
            </Style>

            <Style x:Key="ReplyBaseTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="TextWrapping"
                        Value="NoWrap" />
                <Setter Property="MaxLines"
                        Value="1" />
                <Setter Property="TextTrimming"
                        Value="CharacterEllipsis" />
                <Setter Property="FontWeight"
                        Value="SemiBold" />
            </Style>

            <Style x:Key="ReplyBodyTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="TextWrapping"
                        Value="NoWrap" />
                <Setter Property="MaxLines"
                        Value="1" />
                <Setter Property="TextTrimming"
                        Value="CharacterEllipsis" />
            </Style>

            <Style x:Key="ReplyBodyRichTextBlockStyle"
                   TargetType="RichTextBlock"
                   BasedOn="{StaticResource CaptionRichTextBlockStyle}">
                <Setter Property="TextWrapping"
                        Value="NoWrap" />
                <Setter Property="MaxLines"
                        Value="1" />
                <Setter Property="TextTrimming"
                        Value="CharacterEllipsis" />
            </Style>

            <Style x:Key="DisabledBodyTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BodyTextBlockStyle}">
                <Setter Property="TextWrapping"
                        Value="NoWrap" />
                <Setter Property="TextTrimming"
                        Value="CharacterEllipsis" />
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style x:Key="DisabledCaptionTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="TextWrapping"
                        Value="NoWrap" />
                <Setter Property="TextTrimming"
                        Value="CharacterEllipsis" />
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style x:Key="BaseCaptionTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="FontWeight"
                        Value="SemiBold" />
            </Style>

            <Style x:Key="SecretBodyTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BodyTextBlockStyle}">
                <Setter Property="Foreground"
                        Value="{ThemeResource TelegramSecretChatForegroundBrush}" />
            </Style>

            <Style x:Key="InfoBodyTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BodyTextBlockStyle}">
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style x:Key="InfoBodyRichTextBlockStyle"
                   TargetType="RichTextBlock"
                   BasedOn="{StaticResource BodyRichTextBlockStyle}">
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style x:Key="InfoCaptionTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style x:Key="AccentCaptionTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource CaptionTextBlockStyle}">
                <Setter Property="Foreground"
                        Value="{ThemeResource SystemControlForegroundAccentBrush}" />
            </Style>

            <Style x:Key="InfoCaptionBorderStyle"
                   TargetType="Border">
                <Setter Property="Background"
                        Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
            </Style>

            <Style x:Key="AccentCaptionBorderStyle"
                   TargetType="Border">
                <Setter Property="Background"
                        Value="{ThemeResource SystemControlForegroundAccentBrush}" />
            </Style>

            <Style x:Key="SiteNameTextBlockStyle"
                   TargetType="TextBlock"
                   BasedOn="{StaticResource BaseTextBlockStyle}">
                <Setter Property="MaxLines"
                        Value="1" />
            </Style>

            <Style x:Key="EmojiRichTextBlockStyle"
                   TargetType="RichTextBlock"
                   BasedOn="{StaticResource BodyRichTextBlockStyle}">
                <Setter Property="FontFamily"
                        Value="{ThemeResource EmojiThemeFontFamily}" />
            </Style>

            <Style x:Key="DefaultFontIconStyle"
                   TargetType="FontIcon">
                <Setter Property="FontFamily"
                        Value="{StaticResource SymbolThemeFontFamily}" />
                <Setter Property="FontSize"
                        Value="{StaticResource GlyphMediumFontSize}" />
            </Style>

            <Style x:Key="PremiumStar"
                   TargetType="Path">
                <Setter Property="Fill">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="0,1"
                                             EndPoint="0.7,0.3">
                            <GradientStop Color="#1991FF"
                                          Offset="0" />
                            <GradientStop Color="#F379D3"
                                          Offset="1" />
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter Property="StrokeThickness"
                        Value="0" />
            </Style>

            <LinearGradientBrush x:Key="PremiumObliqueGradientBrush"
                                 StartPoint="0,1"
                                 EndPoint="0.7,0.3">
                <GradientStop Color="#1991FF"
                              Offset="0" />
                <GradientStop Color="#F379D3"
                              Offset="1" />
            </LinearGradientBrush>

            <LinearGradientBrush x:Key="PremiumLinearGradientBrush"
                                 StartPoint="0,0"
                                 EndPoint="1,0">
                <GradientStop Color="#6B93FF"
                              Offset="0.0064" />
                <GradientStop Color="#976FFF"
                              Offset="0.5333" />
                <GradientStop Color="#E46ACE"
                              Offset="1.2065" />
            </LinearGradientBrush>

            <LinearGradientBrush x:Key="StarCountLinearGradientBrush"
                                 StartPoint="0,0"
                                 EndPoint="1,0">
                <GradientStop Color="#EEAC0D"
                              Offset="0" />
                <GradientStop Color="#F9D316"
                              Offset="1" />
            </LinearGradientBrush>

            <LinearGradientBrush x:Key="StoryPrivacyCloseFriendsBrush"
                                 EndPoint="0,1">
                <GradientStop Color="#FF78d538" />
                <GradientStop Color="#FF2ab56d"
                              Offset="1" />
            </LinearGradientBrush>

            <LinearGradientBrush x:Key="StoryPrivacySelectedContactsBrush"
                                 EndPoint="0,1">
                <GradientStop Color="#FFffb743" />
                <GradientStop Color="#FFf69a36"
                              Offset="1" />
            </LinearGradientBrush>

            <LinearGradientBrush x:Key="StoryPrivacyContactsBrush"
                                 EndPoint="0,1">
                <GradientStop Color="#FFc36eff" />
                <GradientStop Color="#FF8b60fa"
                              Offset="1" />
            </LinearGradientBrush>

            <ResourceDictionary.MergedDictionaries>
                <muxc:XamlControlsResources />

                <common:Theme />
                <common:ThemeIncoming />
                <ResourceDictionary Source="ms-appx:///Common/CommonStyles.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/Accent.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/MenuFlyout_themeresources.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/TeachingTip_themeresources.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/CheckBox_themeresources.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/RadioButton_themeresources.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/ScrollBar_themeresources_v1.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/BadgeButton_themeresources.xaml" />
                <ResourceDictionary Source="ms-appx:///Themes/TextBox_themeresources.xaml" />
                <themes:Messages />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>

</navigation:BootStrapper>