I've got a window I popup that I'd like to style the same as the default Windows tooltip.

What system colour should I be setting the `BackColor` property to? There isn't a `TooltipBackColor` in the system colours property tab.

Apologies to [Jalal Aldeen Saa'd](https://stackoverflow.com/questions/6803668/what-system-colour-property-do-windows-tooltips-use-for-their-background-colour-b/6803698#6803698) but I'm already using `System.Drawing.SystemColors.Info` and this doesn't change from the default dull yellow colour when I change theme, but the tooltip backgrounds do, as you can see in this screen shot:

![tooltip colours](https://i.stack.imgur.com/RZl52.png)

*(It's actually a bug that you can get both the tooltip and the popup visible at the same time)*