SignaPic YasUI is the premier tool for creating custom themes for YSMenu (the most popular custom firmware for R4/DS flashcarts). While the default YSMenu look is purely functional, YasUI allows you to change every pixel of the interface, from the boot screens to the icons and text colors.
Designing with Precision
YSMenu uses specific image resolutions for the top and bottom screens (256x192). We have provided a Photoshop (.psd) template that includes guides for where the file list and icons will appear, ensuring your artwork isn't covered up by the UI elements.
The BIT15 Color Challenge
The Nintendo DS uses a 15-bit color space, which is different from the 24-bit RGB colors used on most PCs. If you enter a standard HEX code into your YSMenu.ini, the colors may look inverted or washed out. Use the YasUI Color Converter included in the app to get the exact BIT15 value for your desired color.
Applying Your Theme
Once your images are exported as .bmp files and your .ini is configured, copy the entire theme folder to /_ds_menu/themes/ on your SD card. You can then toggle between themes in the YSMenu settings menu.
