" See :h xterm-true-color
let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"

function! toggle_bg#toggle()
  if exists('g:toggle_bg_dark') && exists('g:toggle_bg_light')
    if !&termguicolors
      set termguicolors
    endif

    if g:colors_name ==# g:toggle_bg_dark
      execute 'colorscheme' g:toggle_bg_light
    else
      execute 'colorscheme' g:toggle_bg_dark
    endif
  else
    " If no colorschemes are defined then just toggle the bg setting
    if &bg ==# 'dark'
      set bg=light
    else
      set bg=dark
    endif
  endif
endfunction