Update Reference Screenshots #1769

Job	Run time
build-core	2m 21s
test-core-screenshot (1, 20)	1m 12s
test-core-screenshot (2, 20)	1m 7s
test-core-screenshot (3, 20)	58s
test-core-screenshot (4, 20)	1m 15s
test-core-screenshot (5, 20)	47s
test-core-screenshot (6, 20)	56s
test-core-screenshot (7, 20)	1m 3s
test-core-screenshot (8, 20)	1m 6s
test-core-screenshot (9, 20)	53s
test-core-screenshot (10, 20)	1m 8s
test-core-screenshot (11, 20)	48s
test-core-screenshot (12, 20)	50s
test-core-screenshot (13, 20)	52s
test-core-screenshot (14, 20)	1m 8s
test-core-screenshot (15, 20)	1m 4s
test-core-screenshot (16, 20)	59s
test-core-screenshot (17, 20)	1m 19s
test-core-screenshot (18, 20)	47s
test-core-screenshot (19, 20)	49s
test-core-screenshot (20, 20)	1m 0s
update-reference-screenshots	18s
	22m 40s

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