Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.266659916344
Darker point darker score: -0.0414651655019
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2RFLGMOCJ2DXZ
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: False), confidence: 1, worker: AUKFRW1LVWIZ8
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3RXVRZ0M163C0
darker: 2 (eq: False, dd: False), confidence: 2, worker: AKG5TLUQ2WWED
(0: guessing, 1: probably, 2: definitely)