Improvements to Grid View display

Something as simple as a grid view that minimizes white space and resizes to fill the window (with a little outside border) would be great!

Make it allow be able to adaptively change the number of rows/columns to fit the window beyond just 4 columns. 

Perhaps give an option to hide the file name or just have it only appear when you hover over the image. As with the current gridview where a download button that appears when you hover over an image, the file name could appear at the same time.

The current grid view has an obscene amount of white space for images and they all end up small and hard to see even with the window expanded to fit the screen. Screen space  that could be image space is wasted with the tan border around each image, a big white box for the file name, and then a large margins between images. Then more space is wasted on wide screens because the view maxes out at 4 columns and then just leaves tons of white space on either side.

Simply maximizing the space that the images themselves fill with minimal distractions and elegant magins would be an amazing improvement. 

If possible within the gallery view allowing a default of disabling the extra prompts to have guests sign in or create an account would be awesome as well. The popup enlarges the header and also wastes space and is an unnecessary distraction for my customers who just want to be able to download their content from the gallery.

The login or sign up window that pops up when users click download is obnoxious!!! It has a tiny greyed out "or continue with download only" option at the bottom. I have to include a warning about this in my email to all my customers so they don't get confused and come to me complaining that Dropbox is forcing them to make an account. It would be great if I as the admin could set a default for my links to have this popup disabled so that clicking download just immediately downloads the content.