I'm using kate on my ubuntu 13.04 unity without any problems. Even the dark mediterranean-themes (http://gnome-look.org/content/show.php/?content=156782) look great inside kate.
As you may see in the screenshots, this is a theme with dark background and bright foreground (some greyish-white). If I now start search/replace inside kate, the input text field has a dark background and bright foreground as expected from the theme. Depending on the matches, kate changes the background on-the-fly to some light green or light red, without altering the foreground color. This makes reading extremely difficult.
Is there a way to adjust the foreground color or disable this behavior? I already searched Fonts & Colors inside the configuration, but this menu entry seems to be restricted to the editor only. Any ideas?