[Feature Request] Filetype Icons

It would be nice to see some support for icons on the individual files. Ideally, this would include options for having the icon be that of the parent folder, if one exists, or instead an option for having a custom icon for each individual filetype.

A step beyond this would having a configurable difference between the sizes of the folder icons and the file icons. That is to say, the folder icons could be configured to be 32px squared (or larger, but that's a feature request for another time) and the expanded file view could be a different size entirely (perhaps half the folder size by default)

I think that both custom icons for common filetypes and the difference would be more intuitive for users.

Common filtypes would include: flac, mp3, aac, m4a, acc, ogg, jp(e)g, png, bmp, gif, cue, log.