Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.921713598472
Darker point darker score: 0.188904524591
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: True), confidence: 1, worker: A20ROJTQAV4ATK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NJB5LJJPC7AS
darker: 1 (eq: False, dd: False), confidence: 1, worker: A26N0ZAW34UJUV
darker: 2 (eq: False, dd: True), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A22BAUES1TIZS6
(0: guessing, 1: probably, 2: definitely)