Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.18918988537
Darker point darker score: 1.11539880358
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3GGE6TW2JXBEA (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AE6N096CSI5HT
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1KF93C9NTOP42
darker: 2 (eq: False, dd: True), confidence: 2, worker: AE808DQDYM9F
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1JHVZIC3FH9LG
darker: 2 (eq: False, dd: True), confidence: 1, worker: A277RSAE4AKWW0
(0: guessing, 1: probably, 2: definitely)