Image linked to reusable subprocess

Hi,

I would like to know if it is possible to change the look of a reusable sub-process. I wanted to have several images that would be linked to reusable sub-processes, however it does not seem possible. My idea is to have several departments of an organization represented as images, to be able to differentiate them. Then, through this images, we would be able to navigate to the processes and subprocess within each of those departments.

Thank you very much,

Alexandre