Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0303686672012
Darker point darker score: 0.165158172058
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2QX30PEG8W87U
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A3163PFOUKXQKA
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1WP5F7NLRWLKW
darker: E (eq: True, dd: None), confidence: 0, worker: A3IXQP73TWQX0D
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2LT5VXO2LS0UL
(0: guessing, 1: probably, 2: definitely)