Button on image change is larger than button size

Question

in vb.net 2019
when i press the button , the button image change and thats ok
but the problem that when the image i loaded it is out of button size
i try the code:

button1.Image = My.Resources.Closed_position_vertical
button1.BackgroundImageLayout = ImageLayout.Stretch
button1.ImageAlign = ContentAlignment.MiddleCenter

but it not achieve the target
thanks