Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.886586947174
Darker point darker score: -0.0190400844743
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NF6PELRKACS9
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2KFG0H3IXPFM9 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 0, worker: A1AXG32WSJVY54
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3LNPBZXHKKAA7
darker: 2 (eq: False, dd: True), confidence: 2, worker: APROFW08F7Z34
darker: 2 (eq: False, dd: True), confidence: 2, worker: A360B58589TBUS (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3LHITZX5D9J9A
(0: guessing, 1: probably, 2: definitely)