I understand what you mean here, but unfortunately there's currently no way to customise the look of File View in Workbench windows at all. They can't even use a WBPattern, so you couldn't simply save a striped pattern as your Window pattern to use in File mode. I guess it would be possible for someone to write a patch, and if they could I would use it for sure. Directory Opus Magellan doesn't even allow any special colour lines for files, but it does allow you to choose the one colour for all files and all directories. Just no pattern, to help with readablity. I haven't got much experience with Scalos, so I don't know if it has this feature.
I'd like it if File View mode allowed a colour pattern, like one line white, the next like light blue, then white again. It's like this in Linux, and it helps with readability.
I'd love to write a Workbench lister program some day. Something that doesn't require a full Workbench replacement, but gives you better file lister windows, similar to Magellan crossed with Linux's Nautilus.