Are we sure it is painted over and th covered with a lid like we’ve seen with J-20 at Zhuhai?

IMO J-20's IRST lids covers the windows only hence you could still tell the difference between the lid and frame but the J-35A in the picture has a very uniform looking EOTS it could be conveniently everything just seems to be painted the exact same color but if not then it's a placeholder.
Edit: Actually I'm not sure, if could potentially be a serial production aircraft judging by the fact that the DSI bump is painted in dielectric material like the J-20 same with other leading edges and also tape on the vertical stabilizer. These are not present on the prototypes flown at Zhuhai 24'
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