Workspace background color

Hi, I'm sure someone has asked this, but unable to find anything:

How to change the background color of the workspace, (not the dashboard) the editor area. I find the white to bright late at night.

cheers daniel

Maybe here ? A Dark-Theme for Node-RED here!

Thanks dceejay,

Actually I have that running already! (a good product) and it darkens all but the main grid area. thanks for replying I shall keep digging.

cheers daniel

Update....

I continued to fiddle with settings including those of "Dark Reader" eventually all went dark and there was a quite in the room....

So i'm presuming it was me somewhere, hail to "Dark Reader".