[Bug?] TextBox retains visual focus (highlight and caret) when window is deactivated

[satanikia1300]

Description:
When the application window loses focus (is deactivated), a focused TextBox continues to show its active visual state, including the highlighted border and the blinking caret. This gives a misleading visual cue to the user, implying that the control is still actively receiving keyboard input when the window itself is no longer active.

Expected Behavior:
When the Window is deactivated, a focused TextBox should update its visual state to indicate it no longer has effective keyboard focus. It should hide the blinking caret and change the highlight border to a neutral or inactive color. When the window is activated again, the active visual state should be restored.

Actual Behavior:
The TextBox border remains highlighted and the caret continues to blink even after the application window has been deactivated.

Steps to Reproduce:

1. Launch an application containing a TextBox.
2. Click inside the TextBox to focus it (observe the blinking caret and border).
3. Click outside the application window (e.g., on the desktop or another application) to deactivate the window.
4. Observe that the TextBox inside the deactivated window still shows the caret and focus border.

Screenshots:

[al6uiz]

Thanks for reporting this issue.

I had not considered this case yet. This should apply not only to TextBox, but also to the focus visuals of other controls. When a window is deactivated, controls should not continue to show active focus visuals.

I will review this and update the behavior accordingly.