Is there a way to get a list of all installed color schemes in Vim? That would make very easy to select one without looking at the .vim directory.
Another simpler way is while you are editing a file - tabe ~/.vim/colors/ ENTER
Will open all the themes in a new tab within vim window.
You may come back to the file you were editing using - CTRL + W + W ENTER
Note: Above will work ONLY IF YOU HAVE a .vim/colors directory within your home directory for current $USER
(I have 70+ themes)
[user@host ~]$ ls -l ~/.vim/colors | wc -l
72