Change Gizmo's axis' manipulator size (thickness)

Hello, is there a way to make the gizmo’s lines bigger? Not talking about the gizmo size itself, but the lines you use if you want to only rotate one axis. They are so hard to select and even SEE, it’s driving me mad.

I’m talking about the line thickness. That only changes the size of the whole gizmo. The lines are like a pixel thin.

You can also zoom the entire interface which thickens the lines, but also enlarges everything else, too.