I would like to change favicon image on my Mattermost website (example image of a favicon http://www.dwuser.com/education/content/quick-tip-adding-a-favicon-to-your-website/images/chrome.jpg) but I don't find a configuration in which I can set this parameter.
It's not possible in configuration, see the feature request if you want to vote for it.
If you're hosting it outside of docker or building yourself you could just replace the files in <webapp>/images/favicon (that's where it is in the code it might be different in the built version).
