Dear Maintainer,

Since installing gtk 3.10 I have noticed an issue when scrolling through
lists and tables.

If the mouse is on top of the list and I scroll, the highlight styling
does not get cleaned up properly, leaving a series of partially
highlighted lines. I attempted to get a screenshot, but doing a print
screen caused the window to repaint properly.

I suspect that not enough area is getting marked as dirty when
re-rendering the list during scroll.