[DevTools] Give a distinct color to the root (#34690) #1549

Job	Run time
Cache Runtime node_modules	1d 0h 0m 0s
Cache Runtime, Compiler node_modules	1d 0h 0m 0s
Discover flow inline configs	1s
Confirm generated inline Fizz runtime is up to date	-1s
Test eslint-plugin-react-hooks	-1s
Check flags	-1s
yarn build and lint	-1s
Flow check ${{ matrix.flow_inline_config_shortname }}	-1s
yarn test-build	0s
Search build artifacts for unminified errors	0s
yarn test ${{ matrix.params }} (Shard ${{ matrix.shard }})	-1s
Process artifacts combined	0s
Check release dependencies	0s
Build DevTools and process artifacts	0s
Run DevTools e2e tests	0s
Run sizebot	0s
Check fixtures DOM (stable)	0s
Run fixtures Flight tests	0s
Merge DevTools artifacts	0s
	1d 23h 59m 55s

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