From the forum (russdirks):
My ISP just upgraded to PMA 3.4.5, and I notice that the program has been given a visual makeover, much of which I like. The only thing I don't like is that when browsing data in a table, there is nothing to visually separate one column of data from the next. Older versions uses alternate shading, or vertical lines, both of which I liked. Is there any way to configure PMA to use some sort of visual column separators?