-- Для Mutton
local normal_bg = vim.fn.synIDattr(vim.fn.hlID("Normal"), "bg")
vim.api.nvim_set_hl(0, "EndOfBuffer", { fg = normal_bg} ) -- overrides `~` character at the end of buffer
vim.api.nvim_set_hl(0, "VertSplit", { fg = normal_bg} ) -- overrides `~` character at the end of buffer
vim.api.nvim_set_hl(0, "WinSeparator", { fg = normal_bg })

local mutton = false
local function on_buf_read()
    vim.defer_fn(function()
        local buf_name = vim.api.nvim_buf_get_name(0)  -- Получаем имя файла

        if buf_name:match("%.md$") and mutton == false then  -- Проверяем, заканчивается ли имя на ".md"
            mutton = true
            vim.cmd("MuttonToggle")
        elseif buf_name:match("NvimTree_1$") then

		elseif buf_name:match("%[%[Mutton%]%]$") then

		elseif buf_name:match("/usr/bin/sh$") then

		elseif  mutton == true and not buf_name:match("%.md$")  then 
            mutton = false 
            vim.cmd("MuttonToggle")
        end
    end, 100)
end

vim.api.nvim_create_autocmd("BufEnter", { callback = on_buf_read })