Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.0624459773855
Darker point darker score: -0.209539190372
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3E3QXLHXAGY4Y
darker: 2 (eq: False, dd: True), confidence: 2, worker: A14BFNH96MJQH
darker: E (eq: True, dd: None), confidence: 0, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1GY0P2ZEJ1RK7
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)