Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.134371229284
Darker point darker score: 1.14219474166
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3NG2LZBYUPLVR
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3JB8CDV1SF2TH
darker: 2 (eq: False, dd: True), confidence: 2, worker: AH5A4HC68V57W (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AYLD14EI9Q925
darker: E (eq: True, dd: None), confidence: 2, worker: A1OPUMTQBJ9A09
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: True), confidence: 2, worker: AH7WFV2TQYEW0 (marked invalid)
(0: guessing, 1: probably, 2: definitely)