Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.880986741337
Darker point darker score: -0.975142701986
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2DCGTGSVHL9KM
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3UIVQJXY62XU8
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3AROFXSS8WLSY
darker: E (eq: True, dd: None), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2A42CU48PN8CX
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3RZMD0GPKZBJ5
(0: guessing, 1: probably, 2: definitely)