Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -1.09363320214
Darker point darker score: -1.09355775741
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3DWNVEWGRQMJG
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1WRANKL1HRGYW
darker: 1 (eq: False, dd: False), confidence: 1, worker: AE6N096CSI5HT
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2Q1A5H715C3EK
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
(0: guessing, 1: probably, 2: definitely)