Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.01668183119
Darker point darker score: 0.0768157071657
darker: 2 (eq: False, dd: True), confidence: 2, worker: A356FSW4GNH609 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3RZMD0GPKZBJ5
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1EY3KWGUA9A1N
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1XA2WJ50VR7KQ (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: AGQOUDGB4N87B
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1WRANKL1HRGYW
darker: 2 (eq: False, dd: True), confidence: 2, worker: AYDW5LJOF8GF2
(0: guessing, 1: probably, 2: definitely)