Based on the terminology, this most likely refers to tools used to customize the user interface (skins/themes) for (used with the Nintendo DS/3DS) or, less commonly, a specific tool for PS3 Custom Firmware (CFW) .
Once you’ve used a creator to generate your files, installation is usually a simple "drag and drop" process: How To Install Themes/Skins For Any R4 Card! (DS/DSi/3DS) r4 theme creator
: A dedicated tool for creating and resizing images for top/bottom screens and icons. R4 DS Flashcarts Based on the terminology, this
Crop or resize them to . This is the native resolution of the Nintendo DS screens. Step 2: Load the Images into the Creator Open your chosen R4 theme creator software. 256x192 pixels Crop or resize them to
Different R4 kernels require different formats.