Is your feature request related to a problem? Please describe.
Not related to an issue, just requesting new functionality.
Describe the solution you'd like
When viewing the list of files in thumbnail mode, it would be great if you could see, at a glance, the size of each file. This is already visible in the detailed view, so should be fairly easy to implement.
Describe alternatives you've considered
Right now, switching the view to detailed mode allows you to see this.