Safely eject the MicroSD card, insert it into your R4 card, and boot up your Nintendo DS.
Create a new folder inside the theme directory and name it something descriptive (e.g., my_custom_theme ). r4 theme creator
The bottom touch-screen background, which holds the primary navigation grid. Safely eject the MicroSD card, insert it into
: This happens if your BMP files were saved with the wrong bit-depth. Re-export your images from your photo editor and ensure you select standard 24-bit or 16-bit compatibility options, disabling advanced color space color profiles. : This happens if your BMP files were
: This area displays your game list. Keep the center clear or use a darker opacity layer so your file names remain highly legible.
Once your preview looks perfect, use the creator's "Export" or "Save Theme" function. The tool will automatically generate a folder containing all the correctly formatted BMP files alongside a freshly coded theme.ini file. How to Install Your Theme on an R4 Card
Name the output folder exactly matching the format your firmware expects (e.g., theme01 ).
