Tooltips colour

Could you please tell me where LibreCAD picks the tooltip text and background colours from.

On my Ubuntu 12.04 (Ambiance theme) with Cinnamon (default theme), the LibreCAD tooltips appear as white text on yellow background – i.e. unreadable.

The rest of the applications on my system display tooltips as either white on black - which is the system's default - or black on yellow - which is what I manually set via GNOME Color Chooser while trying to change the colours of the LibreCAD tooltips.

Thank you.

Fixed! I guess I should have been more persistent in my search. I read somewhere that LibreCAD is a Qt project... the Qt Configuration Tool allowed me to change the LibreCAD tooltip colours.