desg. pro X: Hollow rectangle or rectangle with visible border but no internal color

[wizard509]

You have to set a line width.
Go to the first window with a drop down arrow at the top of the screen and click the arrow and select the line width you would like. if the value isn't there you can click the window and input your own value.
Right click on the page and select from the "General " tab. Then click on the check box in front of " Give new objects the most recent attributes". From then on additional shapes with have the same attributes ( color, line width, fill or lack thereof ) until you select / tell it otherwise.

Those same options are available in XP&GD v12 and v15 as well.