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Jul 18, 2019 at 6:41 history edited user82991 CC BY-SA 4.0
deleted 44 characters in body
Jul 18, 2019 at 6:30 history edited user82991 CC BY-SA 4.0
deleted 154 characters in body
Jul 17, 2019 at 23:56 history edited user82991 CC BY-SA 4.0
added 1002 characters in body
Jul 17, 2019 at 15:31 history edited user82991 CC BY-SA 4.0
added 1 character in body
Jul 17, 2019 at 15:30 comment added user82991 @Luciano You obviously are right! Point sample color picker shows darker grey near the inner curve, but I guess it's caused by blurry resampling or JPG compression. The high contrast seemingly really causes visual recognition to be unreliable, too.
Jul 17, 2019 at 15:07 comment added Luciano the shapes in the example look solid black and white, the illusion of shadow is created purely by the interference / proximity of the circles
Jul 17, 2019 at 13:59 history edited user82991 CC BY-SA 4.0
added 12 characters in body
Jul 17, 2019 at 11:37 history edited user82991 CC BY-SA 4.0
added 404 characters in body
Jul 17, 2019 at 10:56 history edited user82991 CC BY-SA 4.0
added 21 characters in body
Jul 17, 2019 at 10:46 history edited user82991 CC BY-SA 4.0
added 503 characters in body
Jul 17, 2019 at 10:13 history edited user82991 CC BY-SA 4.0
added 112 characters in body
Jul 17, 2019 at 8:52 history edited user82991 CC BY-SA 4.0
added 240 characters in body
Jul 17, 2019 at 8:38 history edited user82991 CC BY-SA 4.0
added 240 characters in body
Jul 17, 2019 at 8:26 history edited user82991 CC BY-SA 4.0
added 240 characters in body
Jul 16, 2019 at 22:02 history edited user82991 CC BY-SA 4.0
added 189 characters in body
Jul 16, 2019 at 21:46 history answered user82991 CC BY-SA 4.0