Pieces are draw with real height when the angles are different from 90.
If the angles are 90, and heights are greater than 0, the user can force the drawing with fixed height from Results | Additional | Draw the pieces with a fixed height menu.
Fixed a bug where values for angles were not validated while manually entered in the Parts table. Valid values for angles are between 0 and 180 degrees.
Fixed a bug where UI settings were loaded from a project file when the project was imported. This behavior was not intended.
