Creating a color picker using telescope

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I have developed a color picker using telescope. All credits are in the code. Just in case you need a map helper function or a function to blink the cursor when you jump to another window, have a look at: My ever growing neovim init.lua - DEV Community

-- File: /home/sergio/.config/nvim/lua/colors.lua
-- Last Change: Tue, 01 Feb 2022 08:16

-- This code comes from a series of 7 videos on how to use telescope pickers
-- to change colorschemes on neovim, here is the list:

-- video 1: https://youtu.be/vjKEKsQbQMU
-- video 2: https://youtu.be/2LSGlOgI9Cg
-- video 3: https://youtu.be/-SwYCH4Ht2g
-- video 5: https://youtu.be/Wq3wbplnxug
-- video 6: https://youtu.be/BMTXuY640dA
-- video 7: https://youtu.be/zA-VXoZ-Q8E

-- In order to mapp this function you have to map the command below:
-- :lua require('colors').choose_colors()
--
-- Modify the list of colors or uncomment the function that takes all possible colors

local M = {}

M.choose_colors = function()
    local actions = require "telescope.actions"
    local actions_state = require "telescope.actions.state"
    local pickers = require "telescope.pickers"
    local finders = require "telescope.finders"
    local sorters = require "telescope.sorters"
    local dropdown = require "telescope.themes".get_dropdown()

    function enter(prompt_bufnr)
        local selected = actions_state.get_selected_entry()
        local cmd = 'colorscheme ' .. selected[1]
        vim.cmd(cmd)
        actions.close(prompt_bufnr)
    end

    function next_color(prompt_bufnr)
        actions.move_selection_next(prompt_bufnr)
        local selected = actions_state.get_selected_entry()
        local cmd = 'colorscheme ' .. selected[1]
        vim.cmd(cmd)
    end

    function prev_color(prompt_bufnr)
        actions.move_selection_previous(prompt_bufnr)
        local selected = actions_state.get_selected_entry()
        local cmd = 'colorscheme ' .. selected[1]
        vim.cmd(cmd)
    end

    -- local colors = vim.fn.getcompletion("", "color")

    local opts = {

        finder = finders.new_table {"gruvbox", "nordfox", "nightfox", "monokai", "tokyonight"},
        -- finder = finders.new_table(colors),
        sorter = sorters.get_generic_fuzzy_sorter({}),

        attach_mappings = function(prompt_bufnr, map)
            map("i", "<CR>", enter)
            map("i", "<C-j>", next_color)
            map("i", "<C-k>", prev_color)
            return true
        end,

    }

    local colors = pickers.new(dropdown, opts)

    colors:find()
end

return M