Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.196110157833
Darker point darker score: 0.879732111926
darker: 1 (eq: False, dd: True), confidence: 1, worker: AWL4VD8C90KJR (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 0, worker: A1E4M8ET704NBF
darker: E (eq: True, dd: None), confidence: 2, worker: A37BJIS83RKF9X
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1IOJ2LGMGISYM
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1KF93C9NTOP42
darker: 1 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
(0: guessing, 1: probably, 2: definitely)