Is there an easy way to see what column you're in?

I've switched the colors so I can easily see what row I'm in when using Calibre, and which book v or doubleclick will open.

But I have to try to see the column header text to see which column I'm in.

Is there a way to make this more visible, so it's easier to edit the right metadata? I often end up keying in the wrong column.

Sorry, wrong forum, can't move or delete.