Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -1.02693448301
Darker point darker score: -0.122761816895
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2LT5VXO2LS0UL
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: False), confidence: 2, worker: A22BAUES1TIZS6
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2FNC7KTCBF9IT
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
(0: guessing, 1: probably, 2: definitely)