Invisible indent?

Question

Mobile development

Hello, I found such a magical indent that I can’t remove in any way, and logically, it shouldn’t be there.
Here's the indentation:

Here's the page's markup:

<?xml version="1.0" encoding="utf-8" ?>
<MasterDetailPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="Moneyz.MainPage">

    <MasterDetailPage.Master>
        <ContentPage x:Name="contentPageOfMaster" Title="Master" Padding="0,0,0,0">
            <ContentPage.Content>
                <StackLayout x:Name="masterStackLayout" Padding="0,0,0,0">

                    <Button x:Name="settingsButton" ClassId="0" Text="Настройки" Clicked="MasterButton_Clicked"></Button>
                    <StackLayout x:Name="settingsStackLayout" HorizontalOptions="FillAndExpand"  VerticalOptions="FillAndExpand" BackgroundColor="Aqua" IsVisible="false">
                        <Label Text="Настройки" HorizontalOptions="Center" VerticalOptions="Center"/>
                    </StackLayout>

                    <Button x:Name="currencyButton" ClassId="0" Text="Валюта" Clicked="MasterButton_Clicked"></Button>
                    <StackLayout x:Name="currencyStackLayout" HorizontalOptions="FillAndExpand"  VerticalOptions="FillAndExpand" BackgroundColor="Aqua" IsVisible="false">
                        <Label Text="Валюта" HorizontalOptions="Center" VerticalOptions="Center"/>
                    </StackLayout>

                </StackLayout>
            </ContentPage.Content>
        </ContentPage>
    </MasterDetailPage.Master>

    <MasterDetailPage.Detail>
        <ContentPage x:Name="contentPageOfDetail" Title="Detail">
            <ContentPage.Content>
                <StackLayout>

                    <StackLayout BackgroundColor="LightSlateGray" VerticalOptions="EndAndExpand">
                        <Grid Padding="20, 0, 20, 0" BackgroundColor="#2D1D93">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="2*"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>
                            <ImageButton Source="hanburgerIcon.png" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Transparent" WidthRequest="40" Aspect="AspectFit"
                                Clicked="HamburgerButton_Clicked" Grid.Row="0" Grid.Column="0"/>
                            <Label x:Name="totalSumLabel" HorizontalOptions="CenterAndExpand" VerticalOptions="Center" FontSize="24" BackgroundColor="LightSeaGreen" Padding="10, 5, 10, 5"
                                Grid.Row="0" Grid.Column="1"/>
                            <ImageButton x:Name="sortButton" Source="sortIcon.png" Grid.Row="0" Grid.Column="2" Aspect="AspectFit" WidthRequest="40" HeightRequest="40" BackgroundColor="Transparent" VerticalOptions="CenterAndExpand" 
                                HorizontalOptions="CenterAndExpand" IsVisible="false" Clicked="SortButton_Clicked"/>
                        </Grid>

                        <ScrollView x:Name="notesScrollView" Padding="20, 0, 20, 0" IsVisible="false" BackgroundColor="Red">
                            <ScrollView.Content>
                                <StackLayout x:Name="notesStackLayout" VerticalOptions="FillAndExpand">

                                </StackLayout>
                            </ScrollView.Content>
                        </ScrollView>
                    </StackLayout>

                    <StackLayout Orientation="Horizontal">
                        <ImageButton WidthRequest="100" CornerRadius="50" HorizontalOptions="CenterAndExpand" Source="IncomeIcon.png" Aspect="AspectFit" Clicked="IncomeBtn_Click"/>
                        <ImageButton WidthRequest="100" CornerRadius="50" HorizontalOptions="CenterAndExpand" Source="ExpenseIcon.png" Aspect="AspectFit" Clicked="ExpenseBtn_Click"/>
                    </StackLayout>

                </StackLayout>
            </ContentPage.Content>
        </ContentPage>
    </MasterDetailPage.Detail>

</MasterDetailPage>

This block, to be more precise:

<StackLayout BackgroundColor="LightSlateGray" VerticalOptions="EndAndExpand">
                        <Grid Padding="20, 0, 20, 0" BackgroundColor="#2D1D93">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="2*"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>
                            <ImageButton Source="hanburgerIcon.png" HorizontalOptions="Center" VerticalOptions="Center" BackgroundColor="Transparent" WidthRequest="40" Aspect="AspectFit"
                                Clicked="HamburgerButton_Clicked" Grid.Row="0" Grid.Column="0"/>
                            <Label x:Name="totalSumLabel" HorizontalOptions="CenterAndExpand" VerticalOptions="Center" FontSize="24" BackgroundColor="LightSeaGreen" Padding="10, 5, 10, 5"
                                Grid.Row="0" Grid.Column="1"/>
                            <ImageButton x:Name="sortButton" Source="sortIcon.png" Grid.Row="0" Grid.Column="2" Aspect="AspectFit" WidthRequest="40" HeightRequest="40" BackgroundColor="Transparent" VerticalOptions="CenterAndExpand" 
                                HorizontalOptions="CenterAndExpand" IsVisible="false" Clicked="SortButton_Clicked"/>
                        </Grid>

                        <ScrollView x:Name="notesScrollView" Padding="20, 0, 20, 0" IsVisible="false" BackgroundColor="Red">
                            <ScrollView.Content>
                                <StackLayout x:Name="notesStackLayout" VerticalOptions="FillAndExpand">

                                </StackLayout>
                            </ScrollView.Content>
                        </ScrollView>
                    </StackLayout>

Who knows how to treat?

Answer 1

By default, StackLayout has Spacing="10". Set it to Spacing="0" and the padding between elements will disappear. For Grid, there are similar properties RowSpacing and ColumnSpacing responsible for the distance between rows and columns, respectively.