It's hard to hit the arrows with my large fingers, TomTm navcore 7 has solved this by making the scrolling arrows on the right side at least twice the size.
would be great if that could be a option in the media software too

Please remove the gloves

I thought that we have wide enough scroll bar. It's 80 pixels. But I'll have a look at the code

it's smaller than tomtoms scrollbar in the new version, they are very good.

A good size would be the size of your own finger perhaps?