Yet another request for the option to colour multiple axes to match the line colour in Time Series, please, it would make sooooooooooooooooo much difference !!!
welcome to the 
forum, @paulm47
for feature requests to Grafana OSS we ask the community to make a post here, in GitHub Discussions. It can then get upvoted by fellow users. Devs use this to gauge interest in new features:
I would check and make sure someone hasn’t already started a thread: