I'm trying to change my button color when the mouse is over it but it's not working (the button is still blue) and all examples I find go like I'm doing:
<Button.Style>
    <Style TargetType="{x:Type Button}">
        <Setter Property="Background" Value="#424242"/>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Background" Value="#8BC34A"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</Button.Style>
What am I doing wrong?