Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.00511806453323
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 2, worker: A168LFJNV9DSTS
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: True), confidence: 1, worker: AUD2Y1IOZ0GN4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2CXAWVGQ6QQ2V
darker: E (eq: True, dd: None), confidence: 2, worker: A1MQPBGSL800TL
darker: 2 (eq: False, dd: False), confidence: 2, worker: A36XRHW6R8MU0C
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3NUDHU0ZTFI8H (marked invalid)
(0: guessing, 1: probably, 2: definitely)