更改TabbedPage中选项卡的字体大小

<?xml version="1.0" encoding="UTF-8"?>
<ResourceDictionary xmlns="http://xamarin.com/schemas/2014/forms">
    <Style TargetType="TabbedPage">
        <Setter Property="BarBackgroundColor" Value="LightGray" />
        <Setter Property="BarTextColor" Value="Black" />
        <Setter Property="FontSize" Value="14" /> <!-- 设置字体大小 -->
    </Style>
</ResourceDictionary>

<?xml version="1.0" encoding="UTF-8"?>
<Application xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="YourAppName.App">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="CustomStyles.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>