Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.142393802
Darker point darker score: 0.880066040685
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3DKW5X4Y1Z6UD
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 2, worker: A234WZ4KX8IW07
darker: 1 (eq: False, dd: False), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: ADPVKKFJ886DJ
darker: E (eq: True, dd: None), confidence: 2, worker: A3HIIRTGJUJZ1D
(0: guessing, 1: probably, 2: definitely)