WPF button different images for one style - wpf

Question

I dont understand why image is not displayed. I want different button images for one style.
I tried to set button image as imagebrush in button style, but then I will have the only one picture on all the buttons.
<Button
Height="64" Width="64" Margin="0,0,50,50"
Style="{DynamicResource MyButtonStyle}" VerticalAlignment="Bottom"
HorizontalAlignment="Right">
<Image Source="image1.png"/>
</Button>
<Button
Height="64" Width="64" Margin="0,0,125,50"
Style="{DynamicResource MyButtonStyle}" VerticalAlignment="Bottom"
HorizontalAlignment="Right">
<Image Source="image2.png"/>
</Button>
Button style
<Style x:Key="MyButtonStyle" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Rectangle x:Name="rectangle" Stroke="Black" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Opacity" TargetName="rectangle" Value="0.8"/>
<Setter Property="Stroke" TargetName="rectangle" Value="#FF478CFB"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="OpacityMask" TargetName="rectangle" Value="{x:Null}"/>
<Setter Property="Effect" TargetName="rectangle">
<Setter.Value>
<BlurEffect/>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

Answer 1

Your style is missing ContentPresenter. Hence when you set the image as Content of a Button it has nowhere to actually put it when using your Style's ControlTemplate
So something like this:
Note - I've changed your Grid to a Border and thus got rid of a Rectangle embedded inside and added ContentPresenter as a child of Border
<Style x:Key="MyButtonStyle"
TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="rectangle">
<ContentPresenter />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver"
Value="True">
<Setter TargetName="rectangle"
Property="Opacity"
Value="0.8" />
<Setter TargetName="rectangle"
Property="BorderBrush"
Value="#FF478CFB" />
</Trigger>
<Trigger Property="IsPressed"
Value="True">
<Setter TargetName="rectangle"
Property="OpacityMask"
Value="{x:Null}" />
<Setter TargetName="rectangle"
Property="Effect">
<Setter.Value>
<BlurEffect />
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Usage:
Same as you had -
<Button
Height="64" Width="64" Margin="0,0,125,50"
Style="{DynamicResource MyButtonStyle}" VerticalAlignment="Bottom"
HorizontalAlignment="Right">
<Image Source="image2.png"/>
</Button>