I am probably not the first one to ask about this, but anyway. There is an option in song settings to highlight every beat (every 4th line in most cases) but it seems to me that double highlighting every 16th (ever bar) should make sense in many cases, since that is where important things tend to happen, like chord changes.
Another thing is not really that necessary but which I find it annoying when I have the whole pattern open fully on the screen, seeing all the parts of it (like on the pic) and all the beats and the notes locations. What happens is, when you place the cursor anywhere on it, the whole pattern centers the edit cursor vertically, moving parts of the pattern away from the screen. When you move the cursor with the mouse here and there, the pattern keeps jumping up and down which really gets me disorientated and ending up constantly figuring out where I have to place the cursor now.
If it was possible to switch cursor centering off when not needed, I think that would help the tracker stay within the editing flow.