Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0219558474137
Darker point darker score: 0.991388772282
darker: 2 (eq: False, dd: True), confidence: 2, worker: A7114FTRGZMK2
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1N4JP7BSPNF95
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1KITOCUU7GERN
darker: 2 (eq: False, dd: True), confidence: 2, worker: AVUB4GDC2GE48 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3JKYHQMKDV1Y9
darker: E (eq: True, dd: None), confidence: 1, worker: A92IZM4P9SJ2S
(0: guessing, 1: probably, 2: definitely)