Since a few month I have a tab with this URL: data:text/html,<html style="background:black;"><head><title>Black</title></head></html> I don't need it very oft

Since a few month I have a tab with this URL: data:text/html,<html style="background:black;"><head><title>Black</title></head></html> I don't need it very often, but turning the monitor off, creates other issues which were harder to fix than to use this tab ;-)