Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.138848803779
Darker point darker score: 0.211757182136
darker: 2 (eq: False, dd: False), confidence: 0, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1CV8APDA7Y2PI
darker: 1 (eq: False, dd: True), confidence: 1, worker: A26Y4BFHJE7MN4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2CXAWVGQ6QQ2V
darker: 1 (eq: False, dd: True), confidence: 2, worker: AH5A4HC68V57W (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 0, worker: A3DKW5X4Y1Z6UD
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1ZCYJOVB9YEOW (marked invalid)
(0: guessing, 1: probably, 2: definitely)