Neovim/lua/plugins/gitsigns.lua

return {
    {
        "lewis6991/gitsigns.nvim",
        opts = {
            signs = {
                add = { text = "│" },
                change = { text = "┆" },
                delete = { text = "" },
                topdelete = { text = "" },
                changedelete = { text = "│" },
                untracked = { text = "│" },
            },
            signcolumn = true,
            preview_config = {
                border = 'single'
            }
        }
    }
}