Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.250567476804
Darker point darker score: 0.879732213879
darker: 2 (eq: False, dd: True), confidence: 2, worker: A106ZSJP3CLBE4
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3HIIRTGJUJZ1D
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1NJB5LJJPC7AS
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1JHVZIC3FH9LG
darker: E (eq: True, dd: None), confidence: 2, worker: A350DTTUYQLHKJ
(0: guessing, 1: probably, 2: definitely)