Seems everything is moving to Darkmode, I wish to see n8n workflow editor too in Darkmode. So finally I can make workflows peacefully 
But there are other important features needs to be developed, But please keep this in your todo list.
I have tried couple of chrome extensions. But it doesn’t works properly with n8n.
I totally second this, especially for people still(mostly) working at night, Switching to the n8n ui burns my eyes out
This would be really cool. Just added my vote.
I am going to close this one as there is a more popular request for the same thing. For anyone finding this in the future pop a vote here: Dark mode (Or dark node interface)