Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0637663844246
Darker point darker score: 0.930939392397
darker: 2 (eq: False, dd: True), confidence: 2, worker: ALY6VKHUADU6F
darker: E (eq: True, dd: None), confidence: 1, worker: A1DRFDGG2KCOI2 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: True), confidence: 1, worker: A14VYU4RTNHD1D
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: E (eq: True, dd: None), confidence: 2, worker: AGY2PTZLZFT2L
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2CXAWVGQ6QQ2V
darker: 2 (eq: False, dd: True), confidence: 2, worker: A29WHBX4Y40L08 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1GVN53BJRWKD2
(0: guessing, 1: probably, 2: definitely)