Moving chromosomes with kivy

A demo application available with kivy, was modified to move chromosomes:

The application depends on two files: pictures.py and pictures.kv. Both files are in the same folder:

the particles folder contains the images to load.

The application should be modified so that the same zoom should be applied to all the chromosomes.

Update (22/08/2013) :

Independant zooming of the different chromosome images can be disabled.