Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.879748361146
Darker point darker score: -0.27385222652
darker: 1 (eq: False, dd: False), confidence: 2, worker: AAC5XT7UY7B2K
darker: 1 (eq: False, dd: False), confidence: 0, worker: A3FRJKOYCI9Q53
darker: E (eq: True, dd: None), confidence: 2, worker: A1P2EVJXWYR94M (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UIVQJXY62XU8
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3U65EZ76A3HCN
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
(0: guessing, 1: probably, 2: definitely)