Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.888769903621
Darker point darker score: 0.0907176317279
darker: 2 (eq: False, dd: False), confidence: 2, worker: A11J5NDVR49DET
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2TE84RMBCJ1B1 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: AXKXTGJXLS3C9
darker: 1 (eq: False, dd: True), confidence: 2, worker: A4SP70BFBM4ZP
darker: 2 (eq: False, dd: False), confidence: 2, worker: ANE1T9B3JJAS5
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1GY0P2ZEJ1RK7
(0: guessing, 1: probably, 2: definitely)