If you zoom in to see that it’s black and white, and then zoom back out again, it stays black and white. But if you look away for a bit to forget, maybe change the angle you’re looking at it, it turns red again.
I think it probably depends a bit on the color persistence effect. Like when you stare at something then look away, you see the opposite color. This effect probably requires the parts of your eyes that were looking at cyan to move over the white area and create red. So if you look at it without moving your eyes, it doesn’t work
If you zoom in to see that it’s black and white, and then zoom back out again, it stays black and white. But if you look away for a bit to forget, maybe change the angle you’re looking at it, it turns red again.
For me zooming out changes it back to red.
I think it probably depends a bit on the color persistence effect. Like when you stare at something then look away, you see the opposite color. This effect probably requires the parts of your eyes that were looking at cyan to move over the white area and create red. So if you look at it without moving your eyes, it doesn’t work