Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.130767265234
Darker point darker score: 0.166835356879
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3GFISRU6V2MG5
darker: E (eq: True, dd: None), confidence: 0, worker: A2ZVWE8XJDWNAD
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2BYJ41HX5ZUCW (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1EY3KWGUA9A1N
darker: 1 (eq: False, dd: False), confidence: 0, worker: A266KTWY0HBD2F
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
(0: guessing, 1: probably, 2: definitely)