Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0293309768678
Darker point darker score: 0.141251740359
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1RU9BQLDZ1DSY (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A251KVXCS8E3C
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3PHP9TTAVN4Y4
darker: 1 (eq: False, dd: False), confidence: 2, worker: AFO6OUDRVZ317
darker: E (eq: True, dd: None), confidence: 2, worker: APROFW08F7Z34
darker: E (eq: True, dd: None), confidence: 2, worker: A2FNC7KTCBF9IT
(0: guessing, 1: probably, 2: definitely)