Answer
Single-tap a photo or video to open it fullscreen. Double-tap a photo or video tile, or an audio or file row, to open its original message. The audio seek bar keeps normal tap and drag seeking. Playback, download, Share and Forward work as usual. Screen readers offer View original message. Klipy Clips and GIFs remain in messages, outside these tabs. Opening a tile selects that exact message’s media occurrence, including when another forwarded copy has the same file URL. Available image annotations, existing screen-reader descriptions and the current video subtitles remain available in fullscreen. The grid does not add annotation indicators. Template memes created through Text are included; ordinary retrieved internet images remain excluded.