kickstart.nvim/lua/kickstart/plugins/bufferline.lua

return {
  'akinsho/bufferline.nvim', 
  version = "*", 
  dependencies = 'nvim-tree/nvim-web-devicons',
  config = function()
    require('bufferline').setup {
      options = {
        separator_style = 'slant',
      }
    }
  end,
}