There was a discussion about this in
this thread. There, I propose two solutions:
1. Replacing the image data in binary file (
post #30,
post #35 and
post #36)
2. Replacing a system call in libnickel.so.1.0.0 by a call to a bash script (
post #41)
I tried both ways and they worked. Both however have their disadvantages, cf.
post #49.