Is it possible to change the 503 page?
Can it be done with .css in the ACP?
Yes, and yes.
Although you may want to make a miniplugin to do so instead of using CSS.
can you give me more information?
I'm going to answer my own question.
I have found the NodeBB Featured Threads plugin.
With this one I can stack the posts I like to show.
Ahhhh, Why would you want to do something so evil!!
Anyway, just call bootbox in the Custom HTML section of the ACP. (Make sure you check the box at the bottom.)
Bootbox docs for more info: http://bootboxjs.com/
I added the bottom bar to lavender and vanilla as well, the side menu is persona only for now.
Quite a bizzare set of circumstances! But I am glad it is working for you now 🙂
Heh, yeah apparently I figured it out! 🙂