Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0659288730316
Darker point darker score: -0.0500272539879
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3LNPBZXHKKAA7
darker: E (eq: True, dd: None), confidence: 0, worker: A3Q2HC4T5MHY93
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2EKPA2DR5VSA8
darker: 2 (eq: False, dd: False), confidence: 0, worker: A167L9XCC3KHPF
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2C5N3IQEP0KWA (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1IOJ2LGMGISYM
(0: guessing, 1: probably, 2: definitely)