What
Scrollable areas in Claude Code's interface have a scrollbar that appears when you hover the mouse over them. That behaviour now only switches on when hover is actually being tracked, which means fullscreen mode with full mouse tracking turned on. Before, it was on whenever the content was longer than the visible area. If hover tracking stops, any hovered state is cleared.
Why
In terminals that do not report mouse movement, the scrollbar no longer depends on hover events that never arrive, such as the mouse leaving the area.
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The writer flagged doubt
How the scrollbar looks when hover-reveal is off is not stated.