return {
  -- add gruvbox
  { -- https://github.com/ellisonleao/gruvbox.nvim
    "ellisonleao/gruvbox.nvim",
    priority = 1000,
    opts = function(_, opts)
      ---@class gruvbox: GruvboxPalette
      local gruvbox = require("gruvbox").palette
      gruvbox.dark0_hard_light = "#232627"
      gruvbox.dark0_hard_dark = "#101c1d"

      opts.transparent_mode = true
      opts.contrast = "hard"
      opts.overrides = {
        Normal         = { bg = gruvbox.dark0_hard },
        CursorLine     = { bg = gruvbox.dark0 },
        CursorLineNr   = { bg = gruvbox.dark1 },
        CursorLineFold = { bg = gruvbox.dark1 },
        CursorLineSign = { bg = gruvbox.dark1 },

        DiffChange     = { fg = gruvbox.dark1,
                           bg = gruvbox.faded_yellow },

        -- Plugins:

          -- for 'lewis6991/gitsigns.nvim' in _editor.lua
          GitSignsAdd          = { fg = gruvbox.neutral_green },
          GitSignsChange       = { fg = gruvbox.neutral_orange },
          GitSignsChangedelete = { fg = gruvbox.neutral_red },
          GitSignsDelete       = { fg = gruvbox.neutral_red },
          GitSignsAddCul       = { fg = gruvbox.bright_green,
                                   bg = gruvbox.dark1 },
          GitSignsChangeCul    = { fg = gruvbox.bright_orange,
                                   bg = gruvbox.dark1 },
          GitSignsDeleteCul    = { fg = gruvbox.bright_red,
                                   bg = gruvbox.dark1 },

          -- for 'MeanderingProgrammer/render-markdown.nvim' in langs/markdown.lua
          RenderMarkdownH1   = { fg = gruvbox.neutral_green },
          RenderMarkdownH1Bg = { fg = gruvbox.dark0_hard,
                                 bg = gruvbox.neutral_green },
          RenderMarkdownH2   = { fg = gruvbox.neutral_aqua },
          RenderMarkdownH2Bg = { fg = gruvbox.dark0,
                                 bg = gruvbox.neutral_aqua },
          RenderMarkdownH3   = { fg = gruvbox.faded_aqua },
          RenderMarkdownH3Bg = { fg = gruvbox.bright_green,
                                 bg = gruvbox.faded_aqua },
          RenderMarkdownH4   = { fg = gruvbox.dark_green },
          RenderMarkdownH4Bg = { bg = gruvbox.dark_green },
          RenderMarkdownH5   = { fg = gruvbox.dark_aqua_soft },
          RenderMarkdownH5Bg = { bg = gruvbox.dark_aqua_soft },
          RenderMarkdownH6   = { fg = gruvbox.dark_aqua_hard },
          RenderMarkdownH6Bg = { bg = gruvbox.dark_aqua_hard },

          -- for 'folke/which-key.nvim' in _editor.lua
          WhichKeyNormal = { bg = gruvbox.dark0_hard_dark },

      }
    end
  },

  -- Configure LazyVim to load gruvbox
  { -- https://github.com/LazyVim/LazyVim
    "LazyVim/LazyVim",
    opts = {
      colorscheme = "gruvbox",
    },
  },


  --
  -- Disable the other themes. No need to install them
  --

  -- tokyonight
  { -- https://github.com/folke/tokyonight.nvim
    "folke/tokyonight.nvim",
      enabled = false,
  },

  -- catppuccin
  { -- https://github.com/catppuccin/nvim
    "catppuccin/nvim",
    enabled = false,
  },
}