Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.187027346342
Darker point darker score: 0.0176209540577
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2SNX0RFIPIO60
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1KWFRKBCLPQXZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1GVN53BJRWKD2
darker: 2 (eq: False, dd: True), confidence: 1, worker: A350DTTUYQLHKJ
darker: E (eq: True, dd: None), confidence: 2, worker: A1IOJ2LGMGISYM
darker: E (eq: True, dd: None), confidence: 0, worker: ASJ2RFXCJT1T8
(0: guessing, 1: probably, 2: definitely)