Can you style the Node Red editor?

Is there a way to style the editor - eg. put a caption in the title or change toolbar background colour or the flow background? I have multiple instances of Node Red and they all look too similar.

Yes, the editorTheme setting can be used to do various things:

https://nodered.org/docs/user-guide/runtime/configuration#editor-themes

Cool thanks - though it's always disappointing when you think you've Googled it enough, only to find how poor your search skills must be.

ok..some progress. I delete the docker image and rebuilt it to clear npm cache and then started the container using UID="$(id -u)" GID="$(id -g)" parameters and that seemed to work however the main flow panel does not change with the theme. weird....no idea...see attached...this is "aurora" theme. doesn't want to change to the flow diagram area to dark.