Extension – changing the color theme in Visual Studio
By default, you cannot save the changes you make to the font colors and background settings that you make in the Fonts and Colors dialog. To fix this issue, Visual Studio 2015 has a feature called Themes. If you go to Tools | Options | Environment | General, you can change the theme to one of the three pre-installed stock themes (Light, Blue, and Dark).
A different theme completely changes the look of Visual Studio—from the colors of the title bars to the background color of the text editor window.
You can also customize the theme of Visual Studio completely, but you'll need an extension to do ...