Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.172398693103
Darker point darker score: 0.233723806486
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
darker: 1 (eq: False, dd: False), confidence: 0, worker: A16R0TZXN94V6Z
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3R5MEKMYYM2JX
darker: E (eq: True, dd: None), confidence: 2, worker: A1TIL0S71V1JA0
darker: 2 (eq: False, dd: True), confidence: 2, worker: A22BAUES1TIZS6
(0: guessing, 1: probably, 2: definitely)