Visual Studio developers love to tweak their IDEs so they look just right and are very finicky about their choices -- just look at the fuss that met Microsoft's decision to switch to ALL-CAP menus.
Visual Studio 2015 Color Theme Editor was a very popular tool for customizing the Visual Studio editor ... popular enough that people were hacking it to support Visual Studio 2017. No hacking needed ...
What exactly is the difference between Microsoft’s Visual Studio IDE (integrated development environment) and its Visual Studio Code source code editor? This is a question that is popping up more ...