You can do more than you think.

local ART = {
    "",
    "  db    db d88888b d888888b d8b   db",
    "  88    88 88'       `88'   888o  88",
    "  Y8    8P 88ooooo    88    88V8o 88",
    "  `8b  d8' 88~~~~~    88    88 V8o88",
    "   `8bd8'  88.       .88.   88  V888",
    "     YP    Y88888P Y888888P VP   V8P",
    "",
}

local done = false

callback.on_draw:set(function()
    if done then return end
    if not (Menu.Opened and Menu.Opened()) then return end
    done = true

    utils.execute_command("clear")
    for _, line in ipairs(ART) do
        -- Quoted, and quotes stripped out of the art itself: an unbalanced one
        -- would swallow the rest of the line as a second argument.
        utils.execute_command('echoln "' .. line:gsub('"', "'"):gsub("%c", " ") .. '"')
    end
end)