Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.194777423729
Darker point darker score: -0.895016061072
darker: E (eq: True, dd: None), confidence: 1, worker: ABWVRVG5B5OMX (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1XVZCQ983ETMR
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1D2E3QRL7O43T
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1OPUMTQBJ9A09
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2H4ON6BUHMY1L (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1TM1ZFU4OIPTD
darker: E (eq: True, dd: None), confidence: 2, worker: A1IOJ2LGMGISYM
(0: guessing, 1: probably, 2: definitely)