Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.149723079769
Darker point darker score: 0.13217836698
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3NWQ0535HAXUD
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2ZMZDOTHBMUCK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Q0V5TIXSJJI3
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3FVPDNQQLDFZH
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3S6JT56CCUSE2 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AU4FF0366TBAR (marked invalid)
(0: guessing, 1: probably, 2: definitely)