To fill those cells, go up to the Image Settings panel and turn on the checkbox for Zoom to Fill Frame. Lightroom enlarges the photos until each one fully fills its cell, to give you the look shown in Figure 15. Now, you’re probably thinking, "Didn’t you just have me turn off Zoom to Fill Frame in Step Fourteen?" Yes, I did. But I had you do that so I could graphically illustrate what the Zoom to Fill Frame option does. See, now you know what it does, and when to use it!