When I create a shape with the rectangle and square tool, and colour it, say using blue, and I want to put a different coloured border (black) around the blue rectangle, I am not sure how to do it. I right click and choose Fill and stroke and guess I am supposed to use Stroke paint or stroke style to make the border?

you can also SHIT+Left Click a color from the pallet below.

Thanks, I was doing it correctly afterall but couldn't see the border on screen because of the Master Opacity % setting being so low .....