Tab close button is easily accidentally clicked

This is going to sound weird, but I'm constantly accidentally clicking the close button on files, especially when I have many tabs open.

In the below image you can see that the close button, even though visually is small, actually takes up half of the tab space.



I believe that I usually aim for the middle of the tab, which could explain why I accidentally click the close button.

This is how I believe the hit zone should actually be:



I'm using Beta Build 2162.