changed vim colorscheme

modules/vim.nix

@@ -1,5 +1,4 @@
 with import <nixpkgs> {};
-
 vim_configurable.customize {
   name = "vim";
   vimrcConfig = {
@@ -8,6 +7,7 @@ vim_configurable.customize {
       start = [
         airline
         syntastic
+        doki-theme-vim
       ];
     };
   };

modules/vimrc

@@ -26,7 +26,8 @@ set ai "Auto indent
 set si "Smart indent
 set nowrap "Don't wrap lines
 syntax on
-"colors peaksea
+set background=dark
+colors echidna
 
 set statusline+=%#warningmsg#
 set statusline+=%{SyntasticStatuslineFlag()}