Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.276440282145
Darker point darker score: 0.137197856915
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3LSDO3YPF1SFT
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2T2OXP4DAUXEY (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: AZ9A137H25EDX
darker: 2 (eq: False, dd: False), confidence: 2, worker: AUD2Y1IOZ0GN4 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 0, worker: A2H1TPZ3PZ8CVK
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2YYHNACJ8MFTU
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)