Created attachment 267951 [details]
[ ^ screenshot of the bug ]

Hi, Nautilus is looking bad when displaying large thumbnails. This is because of too much spacing around thumbnails. Also, because of a low amount of columns available. 


How to reproduce :
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- Open Files ( Nautilus ).
- Go to a folder with document having thumbnails.
- Enlarge thumbnails to max ( View Option 'V' button , Zoom in , Ctrl+  or Ctrl+Mousewheel )


Result :
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You can see a low amount of columns and experience how it's not optimal to watch the thumbnails of your folder ( ex : windowed or maximised on a 1920px screen ; you can get only 2 columns max. )


Expected result :
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Screenshot in attachment. A comparison of shotwell thumbnails to Nautilus : with similar geometry size, this one can display up to 4 columns while Nautilus display only 1.