Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Seems like input field for Stroke should not accept negative numbers. ie. -4.0 pt. This occurs in the Property panel as well as the contextual selection bar at the top of the main UI window.
This will be fixed in the next build.
