Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.89155725333
Darker point darker score: 0.412017108632
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1DLY5ZY1C1A6V (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1HZWAX6XQXIM7
darker: 1 (eq: False, dd: True), confidence: 0, worker: APWBUB0PDRLS5
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2EKPA2DR5VSA8
darker: 2 (eq: False, dd: False), confidence: 1, worker: A167L9XCC3KHPF
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1WP5F7NLRWLKW
(0: guessing, 1: probably, 2: definitely)