Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.893855685358
Darker point darker score: 0.0107002017966
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: A2QX30PEG8W87U
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1WP5F7NLRWLKW
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1TQYQG3VFJTWW
darker: 1 (eq: False, dd: True), confidence: 2, worker: A14BFNH96MJQH
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1XVZCQ983ETMR
(0: guessing, 1: probably, 2: definitely)