Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.254181690468
Darker point darker score: -0.978236315322
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3GGE6TW2JXBEA (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A2631BM7J7H37K
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3VKWFQA0KO1KB
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1OPUMTQBJ9A09
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1I4YHF7RG58DV
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2TTWBQFLFUCZ3
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Z6WC0PX1L4UG (marked invalid)
(0: guessing, 1: probably, 2: definitely)