@ed: “people keep asking me to add a pane that’s already there”
That’s probably due to them using a mobile phone, and nothing to do with the colour scheme. On desktop, those panels appear in the rightmost column, where it ought to be obvious. But on mobiles, you have to scroll right down past the last reply (which takes absolutely ages on a thread like this one) before you even get to those panels.
“One of the reasons I picked orange instead of blue, green or yellow, was that it gave better contrast with the black text”
Currently, the black text is very close to illegible against the dark orange background. Black on yellow is well known for being the most legible colour combination there is — but you can’t (or at least, shouldn’t) put white text on a yellow background.