The water cooler on our site theme doesn't currently act as a link to our main chatroom, The Water Cooler. This is clearly unacceptable!!!
Obviously this should act as a hyperlink to our chatroom to match user expectation.
Thanks for the fun idea! Unfortunately, it's not possible to do. It's not a bad idea - to quote the response I got when asking about this:
I think clicking it is a fine idea, but it's just not built that way.
The thing is, the water cooler in the footer is just a background image. It's not an active element that can be clicked.
One of the goals of making the site themes more similar was to make it easier for us to roll out changes to the network without breaking dozens of site themes in the process. Every custom code element we create makes those bugs more likely ... a sort of death of 1000 cuts, if you will. Fun ideas are great and if we can implement them without too much risk, we'll do that - hence why we were happy to add the water cooler to the footer image at all. This may change in the future if we find another way of doing it but, for now, we're going to leave it as-is.
Making a decorative design element link to a chatroom is a bad idea. It would not be consistent with any other Stack Exchange site. Also, I do not expect the background image of the footer to be a part of site's navigation.