I know this is a slightly odd request, but I'd like to make all the mode lines for windows within a frame identical. I'm using powerline with the default spacemacs theme.
So, if I have three windows open with three different active buffers, I'd like the mode lines for all three to show information about the buffer in the currently selected window. (And if I select a new window, they should all change.)
I got the inactive/active styles to line up by redefining
powerline-selected-window-active to always return
t, but I can't figure out how to point them at the selected window's buffer rather than their own active buffer.