Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.14061263544
Darker point darker score: 0.9065276672
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1LAC2M11NC968
darker: E (eq: True, dd: None), confidence: 2, worker: AWO91BEOHNOJB
darker: E (eq: True, dd: None), confidence: 0, worker: A18YH2N9M2P95T (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A8M21O74D3SFU
darker: 2 (eq: False, dd: True), confidence: 2, worker: A234WZ4KX8IW07
darker: E (eq: True, dd: None), confidence: 1, worker: A3TO9R1Z7L6PZZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2DNSD743W4OC2
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3PKLLRKQ7VUVN (marked invalid)
(0: guessing, 1: probably, 2: definitely)