First from all we choice a wallpaper which can give good looking at portrait and landscape mode.
Wallpaper must be dark color (Black, dark Grey, Blue dark e.t.c) because the light fonts let a line to look at the background.
We edit the wallpaper with photoshop.
Our wallpaper for Portrait must be in PNG and to have dimensions:
480 width X 768 length
We cut the wallpaper in two pieces because at this manila we have 2 files for it.
The upper part must be 480X512
and the down part 480X256
so as 512+256=768 which is the length of our wallpaper.
The next step is to put them pictures in new transparent PNG files.
The Upper part we put in a transparent 512X512 png file, like at the pic follow, and we give file name, the name of the manila file: 70083a29_manila.png
Yellow line is to look how you placement the picture in the new transparent file.
The down part picture we put in a new png file 512X256 like at the follow picture, and we give name 77feee1d_manila.png
Wallpaper for landscape must have dimensions 800 width X403 length
We cut it also in two pieces.
Left part must be 512X403 and right part 288X403
so as 512+288=800
We put the left part in a new transparent png file with name 29cff4fe_manila.png 512X512 with name like at the follow picture:
The right part we put also in a transparent png file 512x512 with name
058acf31_manila.png like at the follow picture
We put the 4 pictures in a folder and we import this folder at the M9Editor
You can find M9editor Here:
We convert the 4 picture files from png to qtc with editor. Press the button P>Q
Automatically, editor will make 4 manila files.
After that if you know make those files a CAB or copy paste at the windows folder with overwrite and soft reset.
Before you paste the new files at the windows, keep a copy from the original files so as to come back if you want.
AND DON'T FORGET: TAKE A BACKUP FROM YOUR DEVICE BEFORE.
I hope my post will help you to manage your wallpapers