Can I ask you to log a feature request? I would call the present collaboration between the swatches panel (only place where you can import a custom color palette) and the color dialog boxes everywhere (not only for Fill/Stroke but also for Theme Colors in CP8) at the least 'cumbersome' and 'confusing'. Sorry, Adobe, I logged several requests to improve those work flows. You have to be sure to choose the right option in the Swatches panel, before choosing the color picker which is not intuitive at all, unexpected.
