Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.880724845614
Darker point darker score: 0.912596549314
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2XVUD9MH52HYU
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1YQ4Z1018RM1R
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B0AB2C9SIHN
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2SYRUPGAUG1QO
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1XA2WJ50VR7KQ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A360B58589TBUS (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2CXAWVGQ6QQ2V
(0: guessing, 1: probably, 2: definitely)