Included file ‘JB/setup’ not found in _includes directory
Alter colors for file types in linux terminal
The blue on green highlighting that results in a default debian color scheme when it is displaying VirtualBox Shared folders is hard to read.
To change it you need to create a new .dircolors file in ~/ by using dircolors -p > ~./dircolors.
Then edit the color specifications for OTHER_WRITEABLE (non-sticky) to something more suitable.
The man page says a ~/.dir_colors file will be recognized and used but the cruchbang (and maybe debian) .bashrc looks for a ~/.dircolors file intead. Change the color file name or edit the .bashrc to make it work.
I use a white text with a blue background for the directories, which looks like
OTHER_WRITEABLE 37;44
source .bashrc when you’re done editing.
Explanation at Ask Ubuntu
Debian User Forum Example
dircolors man page