Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0471882828833
Darker point darker score: 0.0447703346524
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3DKW5X4Y1Z6UD
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
darker: E (eq: True, dd: None), confidence: 1, worker: AKLZPOBB3YA33
darker: 1 (eq: False, dd: False), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2H4ON6BUHMY1L (marked invalid)
(0: guessing, 1: probably, 2: definitely)