When reloading configuration fix auto color themes not being re-applied #9019

Job	Run time
Bundle test (ubuntu-latest)	1m 27s
macOS Brew	2m 34s
Linux (python=3.10 cc=gcc sanitize=0)	1m 21s
Bundle test (macos-latest)	1m 41s
Linux (python=3.11 cc=gcc sanitize=1)	1m 31s
Test ./dev.sh and benchmark	1m 16s
Linux package	4m 29s
Linux (python=3.12 cc=clang sanitize=1)	2m 7s
	16m 26s

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