I take no credit for this guide, all credit goes to darkforce97
This is a simple tutorial in creating your own custom themes for your xbox 360Dashboard.
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What you need:
4 pictures in PNG format that must be 1280 x 720 in pixel size. You can use a popular program called PAINT.NET (google it) its free and similar features to Photoshop. It can convert to PNG format.
Name the files EXACTLY this way (WITHOUT file extenstions and quotes):
"wallpaper1" --> MAIN Screen
"wallpaper2" --> GAME Library Screen
"wallpaper3" --> MEDIA Library Screen
"wallpaper4" --> SYSTEM Settings Screen
Dashboard icons - you can have up to 2 different icons. Make sure that you make them no bigger than 65 x 65 pixels in size, in PNG format.
LE FLUFFIE v69.0.0.2 _http://www.megaupload.com/?d=09JU0P1E
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(1) Open Le Fluffie and choose PACKAGE CREATION:
* If a screen pops up to choose STFS, then choose it.
(2) This screen appears, now on the right side panel, start adding each wallpaper file (wallpaper1, wallpaper2, wallpaper3, wallpaper4).
(3) Configuring the MAIN Content Attributes:
Make sure the items circled in RED are selected as it appears above.
The textbox circled in YELLOW is optional. However, if u want to add anything in it (ONE AT A TIME), make sure to click SAVE DISPLAY button after each input.
For example, check DISPLAY TITLE, type your text in box, then click SAVE. Now check DESCRIPTION, type your text in box, click SAVE.
The area circled in GREEN are the icons used by dashboard. Right click each box and add the image (you can have 2 different ones if you like).
*Note if u want to change the colour of ur dashboard, then click onto the THEME tab and there is a dropdown box that has a list of different colours. Sorry no screenshot.
(4) Finalizing:
Make sure all the above are selected before clicking CREATE PACKAGE.
It will now create the CON file to whatever filename you choose.
All that is left is to transfer the CON file to your HDD partition 3: