Re: Highlight Active Window

[Lennart Borgman (gmail)]

Lex Fridman wrote:
> Hi,
>
> Say I split an emacs frame into two windows (horizontally). I switch from
> one to the other using the C-x o (other-window) command. Is it possible to
> "highlight" the active window by, say, changing its background color, border
> color, etc.
>
> I suppose this code would have to executed every time a C-x o command is
> fired.


The color of the mode line should tell which window is active. You can 
customize the two faces mode-line and mode-line-inactive:

  M-x customize-face RET mode-line