Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.206971681098
Darker point darker score: -0.937259893925
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3HIIRTGJUJZ1D
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NJB5LJJPC7AS
darker: E (eq: True, dd: None), confidence: 2, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: False), confidence: 1, worker: ABWVRVG5B5OMX (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A18YH2N9M2P95T (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2SE351Y7LS6QI
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2EKPA2DR5VSA8
(0: guessing, 1: probably, 2: definitely)