Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -1.00781449588
Darker point darker score: -0.95146732775
darker: E (eq: True, dd: None), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: AUKFRW1LVWIZ8
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3LSDO3YPF1SFT
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3799NWTIYKCEV
darker: 2 (eq: False, dd: False), confidence: 2, worker: A27H0BKXDPJ543
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3NWQ0535HAXUD
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1KITOCUU7GERN
(0: guessing, 1: probably, 2: definitely)