How to customize the menu.

The full customization relies on the ini.
There are two ways of editing via notepad or Menudo Assistant. This tutorial helps explain the functions.
Open up system_theme.ini. The ini is somehow similar to an html, honestly it feels like a scripting language to me.

Menu0runs = fat:/TTMENU.nds
If you press A while on Goto Original Menu (Menu0) it would run:
fat:/TTMENU.nds

You can also change it make it to view a folder by linking it with the folder instead.

Menu7runs = games
When you run Menu6Runs(Games) it explores the games folder.

There are also special functions like:
gba - loads slot2
power - powers off

to use it just add it after the Menu(X)runs =
like so:
Menu8runs = power

Misc Stuffs:

You can speed up the animation by holding the B button while navigating.

To open a file via stylus slide the name towards to the left.

You can hold the buttons in directions before you power on your ds to do autorun runs.
Ini Example:
startupUP = fat:/TTMENU.nds
startupDOWN = games
startupLEFT = fat:/Halo_ds.nds
startupRIGHT= fat:/beup.nds
It uses the same style with the menu(X)runs.

If you can load any homebrews, try changing the ini:
//auto
//Chishm's DLDI Loader
//M3 Internal Loader
//GBAMP Internal Loader
//EZ-Flash IV (4) Internal Loader
//SuperCard Internal Loader

NDSloader = 0
the 0 variable runs auto detection.

The complexity of the customization would make it flexible.
Sorry but this demo is very unuserfriendly.
Make sure you extract all to root then dldi. I just noticed this version is very complicated but still I Hope you guys would enjoy.