Test

Support channels_as_legend for single-channel and sequential renders #1489

Job	Run time
get-environments	7s
hatch-test.py3.14-stable	4m 28s
hatch-test.py3.11-stable	4m 25s
hatch-test.py3.14-pre (PRE-RELEASE DEPENDENCIES)	3m 39s
Tests pass in all hatch environments	3s
	12m 42s

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