To make a custom bootscreen, you'll need an imaging program which can index .bmp"s to 4bit (16 colors). For example you can use "Gimp" (Freeware). Since we used this software, the rest of this tutorial and the steps described below are based on Gimp.

• First, you'll need two sample bitmaps (background & progress bar) which you can later modify. These .bmp files can be obtained by clicking on the "Get BMP"s" button in the LBS Patcher or through an sample .lbs file (extract with eg. 7-Zip). You can save them anywhere you like.

• Now, open the .bmp files in Gimp and open the color map (Windows > Dockable dialogs, also see the screenshot below). If you like you can change the colors in the pallet a bit, but you can not add colors. 16 is the maximum! Also the first color has to be black (value: #000000) and the second color has to be #151A20.

• After modifying, you'll have to save the two files. Save the background image as "BG.bmp" and the progress bar image as "PB.bmp". If you have multiple layers, please merge them when saving to keep the correct color pallet, the progress bar has to have the same color pallet as the background image. The BG.bmp should have a resolution of 640x480.

• Go to the location where you saved the images and zip the BG.bmp and PB.bmp files together. You can name this file whatever you like, as long as it has this composition: "anyname_boot.zip". (You can zip, rar or 7z the 2 bitmap"s and even rename it to "anyname_boot.lbs" if you like, but all will work "anyname_boot.zip, rar, 7z")

Now you can select "Custom Bootscreen" in the patcher and locate your "anyname_boot.zip" file!!