Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.174476264564
Darker point darker score: 0.125098345004
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NO4LG6KGOGFD
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3RQN5RZD1N2KP
darker: 2 (eq: False, dd: False), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A234WZ4KX8IW07
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2ZRJMJTE6ID97
darker: 1 (eq: False, dd: True), confidence: 2, worker: A32M5FDKCPHMA
(0: guessing, 1: probably, 2: definitely)