ARCHOS box rock - Manual (Page 51)

2.3 GREYSCALE (RECORDER ONLY)
Greyscale
This is a demonstration of the Rockbox greyscale engine which supports graphics on
the Jukebox. Press OFF to quit the demo.
2.4 HELLO WORLD (ALL MODELS)
Hello world!
This is plugin demo for hackers. Every programmer's first program is the helloworld-
program which does nothing except displaying "Hello world!" on the screen.
2.5 MANDELBROT (RECORDER ONLY)
Mandelbrot
This is another demonstration using the greyscale engine. It draws fractal images
from the Mandelbrot set.
KEY ACTION
Arrow keys Move about the image
PLAY Zoom in
OFF Quit
F1 Increase iteration depth (more detail)
F2 Decrease iteration depth (less detail)
F3 Reset and return to the default image
Rockbox User Manual