Revert "Fix color of app menu entries and background color" #508

Job	Run time
changes	7s
integration-sqlite (capabilities_features, 8.2, main)	2m 59s
integration-sqlite (collaboration_features, 8.2, main)	5m 12s
integration-sqlite (comments_features, 8.2, main)	4m 46s
integration-sqlite (dav_features, 8.2, main)	6m 13s
integration-sqlite (features, 8.2, main)	10m 48s
integration-sqlite (federation_features, 8.2, main)	5m 15s
integration-sqlite (--tags ~@large files_features, 8.2, main)	11m 19s
integration-sqlite (filesdrop_features, 8.2, main)	3m 41s
integration-sqlite (openldap_features, 8.2, main)	3m 47s
integration-sqlite (openldap_numerical_features, 8.2, main)	3m 28s
integration-sqlite (ldap_features, 8.2, main)	4m 24s
integration-sqlite (remoteapi_features, 8.2, main)	3m 53s
integration-sqlite (setup_features, 8.2, main)	3m 28s
integration-sqlite (sharees_features, 8.2, main)	5m 55s
integration-sqlite (sharing_features, 8.2, main)	18m 32s
integration-sqlite (videoverification_features, 8.2, main)	7m 16s
integration-sqlite-summary	5s
	1h 41m 8s

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