I'm looking for a Linux file manager:
- Desktop environment neutral, plain GTK or Qt libs are OK, I just don't want to install million services from GNOME or KDE just to use a single app.
- Has keyboard shortcuts that do not include the use of arrow keys as I don't want to move my fingers from touch typing position. For example Midnight Commander has Ctrl+n, Ctrl+p, Alt+n and Alt+p for moving in the file lists which is great.
- Has thumbnails so that I can preview images.
- Preferrably twin panel.
Double Commander has all of this except the keyboard navigation. Midnight Commander has everyting except the thumbnails and is not graphical. All the ones I've tried fail in some way (GNOME Commander, emelFM, SpaceFM, 4Pane, gentoo, Tux Commander).