Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.157477398344
Darker point darker score: 0.170598528053
darker: 1 (eq: False, dd: False), confidence: 0, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2V9WRIAL9CJZT
darker: 1 (eq: False, dd: False), confidence: 0, worker: A18YH2N9M2P95T (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: True), confidence: 2, worker: AUJPYSYU7YL5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3PEMQP28HYGHU
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
darker: E (eq: True, dd: None), confidence: 0, worker: A3HO0DT978POJ2
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
(0: guessing, 1: probably, 2: definitely)