Hello!

We are Luca and Fabian, two computer science master students from the "Freie Universität Berlin", and we would like to contribute to the Roundcube project. 

We would like to implement the feature request number #1490538, posted here.
Our plan:

For all other templates we can’t edit, we would change  the "rcmail_message_contactphoto" function to only search for a contact photo if the option is set and return a blank image otherwise.

We would appreciate any feedback!

Best wishes,
Fabian and Luca