Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0178875993067
Darker point darker score: -0.943591599325
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1KITOCUU7GERN
darker: E (eq: True, dd: None), confidence: 1, worker: A3RJ8NZQ8BRTZM (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A16B0PGF0CU0JV
darker: 2 (eq: False, dd: False), confidence: 0, worker: A2OF0GTKWKM2T5
darker: E (eq: True, dd: None), confidence: 2, worker: AEHEZAYCPWF0E
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1JHVZIC3FH9LG
(0: guessing, 1: probably, 2: definitely)