Sorry about the blunderish sounding Subject line; having been schooled in adobe tools I'm not sure
what the terminology would be for Designer X.

I want to draw rectangles with a visible border line but no internal color
I think the term in Illustrator would be a `stroke' but no internal color.

Just removing the color with with the crosshatched Icon in the bunch across the bottom (3rd from left)
makes the rectangle invisible.

Shift click on the same icon sounds like it might do what I want, but seems to do nothing whatever for me.

Guessing its something pretty simple but after plowing thru a few of the beginner `How to's' I'm not finding it.

I'd like to be able to draw rectangles represented by a border line of whatever width I like and decide what colors to fill
them with later.