Behaviour you're describing is part of default Template
for a Button
. To customize this behaviour you can define your custom Button.Template
:
<Button Content="Asia" HorizontalAlignment="Left" Margin="232,366,0,0" VerticalAlignment="Top" Height="395" Width="235">
<Button.Template>
<ControlTemplate TargetType="Button">
<Grid>
<Grid.Background>
<ImageBrush ImageSource="south amirica.png"/>
</Grid.Background>
<ContentPresenter/>
</Grid>
</ControlTemplate>
</Button.Template>
</Button>
Be aware that this will also remove all other effects like for example button press effect but you can add it to your Template
if you want