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Hi folks, will it be possible to hide the window toolbar on top when it is not needed?.

Completely hide or extend your content into that area? Completely hiding the title is controlled by passing `undecorated=true` to your `Window` composable. Once you do that, you lose everything provided by the native OS window decorations - resizing, minimizing, maximizing, dragging, etc - and you'll need to provide that functionality yourself.

1. I am trying to hide it completely. I have set the `undecorated=true` attribute, and it seems to work fine. However, will it be possible to add dragging and resizing support for this element? Do you have any sample code?
2. Could we get a `tint` or `blur effect` on the window toolbar?

`androidx.compose.foundation.window.WindowDraggableArea` can be used to get the draggable title bar. There is nothing that I know of yet that would provide out of the box support for resizing an undecorated window from edges and corners. I have some sample code at <https://github.com/JetBrains/compose-jb/issues/1773> but the resizing overall (which might be coming as Swing / AWT legacy) is pretty janky.

Tinting, translucency, blurring are available if you drop down to the underlying native OS APIs (mica / acrylic on Windows, for example), but there's nothing that would expose that at the Compose window level. Nor am I sure that such APIs can realistically be provided given different approaches by the platforms.

For macOS, see solution here: <https://github.com/JetBrains/compose-jb/issues/877#issuecomment-999046503>