Sublime VSCode Theme
This theme makes VSCode look just like Sublime Text, including the light sidebar.
(Icon theme in the screenshot: flatland icon theme by gebilaoxiong.)
This extension can be installed from the Visual Studio Code Marketplace.
Text contrast issues
Due to the lack of color customization options offered by VSCode, the light sidebar causes a few UI elements to be unreadable. I'm working on resolving this problem. See issue 1 for more details.