Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.247684923126
Darker point darker score: -0.0953680266741
darker: 2 (eq: False, dd: True), confidence: 2, worker: AH5A4HC68V57W (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 0, worker: AWO91BEOHNOJB
darker: E (eq: True, dd: None), confidence: 0, worker: AG5PRN6LLI9E1
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1CV8APDA7Y2PI
darker: 1 (eq: False, dd: False), confidence: 2, worker: AEHEZAYCPWF0E
darker: 1 (eq: False, dd: False), confidence: 0, worker: A21TA9DWNPHPBG (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3JJAFR9BRLG0
(0: guessing, 1: probably, 2: definitely)