How to increase vertical scrollbar arrows in wpf
<p>HERE IS PHOTO OF MY VERTICAL SCROLLBAR:
<a href="https://i.stack.imgur.com/0Pi50.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0Pi50.png" alt="enter image description here"></a>
I've been trying to increase size of this arrows but unfortunately I could not make it work,
I changed background colour of those arrows, but unfortunately I could not find how to edit their size..</p>

<p>Could anyone help me about this please, I would appreciate this so much!</p>

<p>Thanks guys!</p>