The ImGui overlay was always visible, so the mirror window Steam Remote Play
Together captures always had debug panels drawn over the game. F1 now toggles
the whole overlay off; the input/video/audio pipelines keep running
underneath. When hidden, a small "F1: show overlay" hint fades out over ~4s so
the operator can find the way back, then the window is fully clean.
First item of the "make the tool usable" roadmap task.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
BlackMark
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