I specified 6 columns in my Flickr photoset gallery; however, it's showing up as 5. How do I keep it as 6?
gallery type='flickr' user_id='61706391@N05' view='photosets' photoset_id='72157629953008149' columns='6' tags='Shopping for Health,Shopping for Health 2012,South Beach 2012,SRD' tag_mode='any' sort='date-posted-desc' per_page='18']
Also, I don't see a Photonic setting for the grey background that appears behind the thumbnails. I'd like to remove that; how is that done?