Features:

• Added Bar and Donut shape.
  
• Added size option to Cone, Pyramid, and Sphere.
  
• Added a backup feature. The AppData folder now contains a history of 6 backups. Any of the files can be copied and renamed back to the original file name. Instructions to do this have been added to the manual.

Fixes and Updates:

• Pressing CTRL+E was throwing an exception when there were no Documents in the project.
  
• Cleaned up tool tip for the export button.
  
• Updated examples to reflect the new Cone, Pyramid, and Sphere functions. To refresh an example after being opened once, simply delete it out of the example folder and reopen.

Manual Update

• Added verbiage for the new Bar and Donut shape.
  
• Added verbiage for the new Cone, Pyramid, and Sphere variants.
  
• Added instructions for restoring from a backup.

Breaking Changes
The new Cone, Pyramid, and Sphere syntax has changed. To fix, replace func(x, y, n) with func(x, y, 1, n). See the manual or function legend in Height Lab for an explanation of the new syntax.