Nautilus File List Appearance (3.26 Debian Stretch)

[mark <markd89 yahoo com>]

Hi,

In Stretch, looking at a list of files in Nautilus, there is a grey horizontal line between each file:

http://realityisreality.com/l/stretch.png

In Jessie, these lines weren’t there:

http://realityisreality.com/l/jessie.png

How can I remove the lines in Stretch?

Thanks much!

Mark