Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0798623849726
Darker point darker score: 0.985076260664
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1NPKI9KKWOI2P
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1297K7FECN9JJ
darker: E (eq: True, dd: None), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A3163PFOUKXQKA
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: True), confidence: 0, worker: A36XRHW6R8MU0C
(0: guessing, 1: probably, 2: definitely)