Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.188519460215
Darker point darker score: 0.910034281447
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NJB5LJJPC7AS
darker: 2 (eq: False, dd: True), confidence: 2, worker: A27H0BKXDPJ543
darker: 2 (eq: False, dd: True), confidence: 1, worker: AKHVTWTHW5VID
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2KFG0H3IXPFM9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A1GM94HPPS4SS0
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2ZRJMJTE6ID97
(0: guessing, 1: probably, 2: definitely)