Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.03557995231
Darker point darker score: 0.908228382226
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2KGL2FXIG2IQM (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2BG6O1B5B3F78
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NJB5LJJPC7AS
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2925T8JYCYNN3 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1SRPH3BGCHUOA
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3GTIIFSMHAKRZ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)