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.
Try
set wildmenu
set wildmode=list:full
set wildcharm=
let mapleader=','
nnoremap c :colorscheme
in your ~/.vimrc.
The first two lines make possible matches appear as lists. You can use either or both.
The fourth line makes leader , instead of the default \.
The last line allows you to simply type ,c to get a list and a prompt to change your colorscheme.
The third line effectively allows for Tabs to appear in key maps.
(Of course, all of these strategies I've learned from the internet, and mostly SO, very recently.)