When using the Under Construction extension provided within Pro, it is possible to set the background color / image of the holding page. However, the body color is left at the site default, and sometimes this ends up with the key icon in the bottom right of the page from becoming very hard to see.
I was able to make it visible again with a tiny bit of CSS relating to body.tco-under-construction-body
, and setting the color to white to make it visible on a dark image / background color, but it would be a great addition to have this control (of the body color) be added to the settings page of the Under Construction plugin.
Cheers!