Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.887350520293
Darker point darker score: 0.974551573708
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NO4LG6KGOGFD
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UIVQJXY62XU8
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3VPHHR5GLSQ7Q
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1H10UJNXTJDX4
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3PF1VER45OVPM
darker: E (eq: True, dd: None), confidence: 0, worker: A1OTE7CRHWUOGJ (marked invalid)
(0: guessing, 1: probably, 2: definitely)