Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.336339765849
Darker point darker score: 1.01029329126
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2YYHNACJ8MFTU
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
darker: E (eq: True, dd: None), confidence: 2, worker: A2UFB6FRY90EAB
(0: guessing, 1: probably, 2: definitely)