vimscript func: RandomColorscheme

RandomColorscheme.vim

" Random colorscheme function
function! RandomColorscheme()
    " Get a list of all colorschemes
    let s:colorschemes = split(globpath(&rtp, 'colors/*.vim'), '\n')
    " Remove the path and extension from each colorscheme name
    let s:colorschemes = map(s:colorschemes, 'fnamemodify(v:val, ":t:r")')
    " Remove unwanted colorschemes
    let s:colorschemes = filter(s:colorschemes, 'v:val != "blue" && v:val != "darkblue" && v:val != "default" && v:val != "delek" && v:val != "morning" && v:val != "peachpuff" && v:val != "shine" && v:val != "zellner"')
    " Select a random colorscheme from the list
    let s:random_colorscheme = s:colorschemes[rand() % len(s:colorschemes)]
    " Set the color scheme
    execute 'colorscheme ' . s:random_colorscheme
endfunction