Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.924477438345
Darker point darker score: 0.915043468298
darker: 2 (eq: False, dd: True), confidence: 2, worker: ABWVRVG5B5OMX (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A21AVVEQUEX7DA (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: True), confidence: 2, worker: APLPGURGFU8KN
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)