Live preview

All files and folders have an icon on the left side which represents their content.

Image previews are shown by default. To disable them, uncheck Show preview in View > Show View Options.
If you have a slow connection to a remote device you may disable remote previews by unchecking Enable preview on non-local volumes in ForkLift > Preferences.

To change the size of the icons adjust the Icon size slider in View > Show View Options.