my-nvim-lua/lua/plugins/telescope.lua

local present, telescope = pcall(require, "telescope")
if not present then
    return
end

telescope.setup(
    {
        defaults = {
            vimgrep_arguments = {
                "rg",
                "--color=never",
                "--no-heading",
                "--with-filename",
                "--line-number",
                "--column",
                "--smart-case"
            },
            prompt_prefix = "   ",
            selection_caret = "  ",
            entry_prefix = "  ",
            initial_mode = "insert",
            selection_strategy = "reset",
            sorting_strategy = "descending",
            layout_strategy = "horizontal",
            layout_config = {
                horizontal = {
                    prompt_position = "top",
                    preview_width = 0.55,
                    results_width = 0.8
                },
                vertical = {
                    mirror = false
                },
                width = 0.87,
                height = 0.80,
                preview_cutoff = 120
            },
            file_sorter = require("telescope.sorters").get_fuzzy_file,
            file_ignore_patterns = {},
            generic_sorter = require("telescope.sorters").get_generic_fuzzy_sorter,
            path_display = {"absolute"},
            winblend = 0,
            border = {},
            borderchars = {"─", "│", "─", "│", "╭", "╮", "╯", "╰"},
            color_devicons = true,
            use_less = true,
            set_env = {["COLORTERM"] = "truecolor"}, -- default = nil,
            file_previewer = require("telescope.previewers").vim_buffer_cat.new,
            grep_previewer = require("telescope.previewers").vim_buffer_vimgrep.new,
            qflist_previewer = require("telescope.previewers").vim_buffer_qflist.new,
            -- Developer configurations: Not meant for general override
            buffer_previewer_maker = require("telescope.previewers").buffer_previewer_maker
        },
        extensions = {
            fzf = {
                fuzzy = true, -- false will only do exact matching
                override_generic_sorter = false, -- override the generic sorter
                override_file_sorter = true, -- override the file sorter
                case_mode = "smart_case" -- or "ignore_case" or "respect_case"
                -- the default case_mode is "smart_case"
            },
            media_files = {
                filetypes = {"png", "webp", "jpg", "jpeg"},
                find_cmd = "rg" -- find command (defaults to `fd`)
            }
        }
    }
)

-- load the theme_switcher extension
require("telescope").load_extension("themes")

if
    not pcall(
        function()
            telescope.load_extension("fzf")
            telescope.load_extension("media_files")
        end
    )
 then
     -- This should only trigger when in need of PackerSync, so better do it
    print("After completion of PackerCompile, restart neovim.")
    -- Trigger packer compile on PackerComplete, so it properly waits for PackerSync
    vim.cmd 'autocmd User PackerComplete ++once lua print "Waiting for PackerCompile.." require("packer").compile()'
    vim.cmd 'autocmd User PackerCompileDone ++once echo "Packer Compile done, restart neovim."'
    require "pluginList"
    require("packer").update("telescope-fzf-native.nvim", "telescope-media-files.nvim")
end