Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.133231513838
Darker point darker score: -0.879866348463
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1YQ4Z1018RM1R
darker: E (eq: True, dd: None), confidence: 1, worker: A1KF93C9NTOP42
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2RLY0MUZQ1R1G (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3O8YXPG1HGUH0
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3DY9JPLPQUN1O
darker: 1 (eq: False, dd: True), confidence: 2, worker: AO2JIXLS5MIC5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1RDQFNF6LD25Z
(0: guessing, 1: probably, 2: definitely)