VSProlog for VS2015 is following natural version of VSProlog2010, VSProlog2012 and VSProlog2013

It enables syntax coloring and the award winning "Go to Definition" command.

Source code now available on GitHub

Again, for some unknown reason the description must be 280 characters long (2 tweets?) so this is just grabagge to get to that number. I'm sure you get the point with what I already wrote plus the image.

Every default theme of Visual Studio is supported.