It is now possible to apply a blur effect without Glasstron, as of Electron v24.x.x. Therefore, development for Glasstron has been discontinued.
Applying Window Blur without Glasstron
To add the blur effect for both Windows and macOS, add the following to your BrowserWindow configuration:
... backgroundMaterial: `auto` vibrancy: `dark` ...
As of Electron v24.x.x, applying the acrylic/mica effect is now possible.
What about Linux? Well, that's complicated as you need to keep in mind that everyone using Linux is using a different desktop environmnet and has it setup to their own preferences.
Glasstron will not continue development just for Linux users. We do not find that it is worth it.