I'm using Xubuntu 12.04.
I have a panel at the top of my screen, with a "Window Buttons" item on it that shows the list of open windows (panel-tasklist-menu).
I'm using a dark theme, and when the buttons "flash" to notify me they want attention, the colour is barely noticeable - I'd like it to flash to a more obvious/contrasting colour. I can change themes to get this effect, but I really like everything else about the theme I'm using.
I've tried looking for information about how to override the colour, but there doesn't seem to be a setting for it - other themes use other colours - so it must be possible. Does anyone know how I can change the colour it flashes to?