Tabline doesn't fade on focus lost when `enablefocusfading` is set?

[shyun3]

Hello, I have enablefocusfading set to true and I would have expected that the tabline gets faded when Neovim loses focus but that doesn't seem to be happening. I saw that 'TabLineSel' is specified as a highlight group in the default blocklist, but no other part of the tabline gets faded.

Here's my repro.lua:

local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "--single-branch",
    "https://github.com/folke/lazy.nvim.git",
    lazypath,
  })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  -- add any other pugins here
  {
    "tadaa/vimade",
    opts = { enablefocusfading = true },
  },
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

Focused:

Not focused: