A GBA Mandelbrot viewer.
Try to use contrast colors for the palette, this will look best.
The screen will stay black for a while depending on your last position inside the mandelbrot (btw, pixels inside the mandelbrot = slow), this is because the last position gets saved in SRAM.
SAVE will store the palette to SRAM.
DEL will delete the color key (color keys are marked with a little white line, the last color of the palette is always a color key).
A - Select the zoom area, Drag the color selection slider
B - Reset zoom
R - Bring up and close the palette editor window
If you zoom in too deep the mandelbrot get messed up.