Version: (using KDE KDE 3.5.4) It would be nice if Yakuake could have a better indication other than the input character in bash (hollow/filled rectangle) to see if it has been focused or not. This would be particularly helpful if "keep on top" is enabled. and conceals a certain percentage of the other windows' title bars depending on what the user has set as width. What I suggest is to make the bottom title bar change colour like a normal KDE window title bar. Making it grayer if it's not focused and use the current colour when it is focused.
I would rather suggest to make the title bar change color when NOT in focus. I like the yakuake just as it is now :)
A possibly relevant merge request was started @ https://invent.kde.org/utilities/yakuake/-/merge_requests/122