Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.176735811913
Darker point darker score: 0.256543176679
darker: E (eq: True, dd: None), confidence: 0, worker: A1ITTM18PQP5X8
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2D6GU31XFG5LY
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: True), confidence: 1, worker: APWBUB0PDRLS5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)