: Two new theme colors ( window.activeBorder and window.inactiveBorder ) were introduced to allow users and theme authors to customize the VS Code window border.
For detailed technical changes, you can view the official October 2019 (version 1.40) Release Notes on the Visual Studio Code website. visual-studio-code-1-40
visualstudio.com/updates/v1_41">November 1.41 update , or should we look at of VS Code? October 2019 (version 1.40) - Visual Studio Code : Two new theme colors ( window