Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.97214656441
Darker point darker score: -0.262323191345
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2D6GU31XFG5LY
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3UC4JITM1QD1M
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2B8L88BUHVOO6
darker: 2 (eq: False, dd: False), confidence: 2, worker: AZ9A137H25EDX
darker: 2 (eq: False, dd: False), confidence: 2, worker: AYLD14EI9Q925
darker: E (eq: True, dd: None), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
(0: guessing, 1: probably, 2: definitely)