Individual elements can also be adjusted not only with easy, but using the new visual effects. Here I am selecting the horizontal gridlines of the chart. I can go to FORMAT >> SHAPES STYLES >> and choose any of the preset effects and colors:

Just like earlier the horizontal options are the colors from the Theme. The vertical options progress from simple/flat to rich/beveled designs.

With just a few clicks the gridlines can easily be updated to these:

– Troy @ TLC