Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0198798023956
Darker point darker score: 0.0827671997136
darker: 2 (eq: False, dd: True), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Q1A5H715C3EK
darker: 1 (eq: False, dd: False), confidence: 0, worker: A32M5FDKCPHMA
darker: E (eq: True, dd: None), confidence: 1, worker: AXKXTGJXLS3C9
darker: 2 (eq: False, dd: True), confidence: 1, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
(0: guessing, 1: probably, 2: definitely)