3.1.1

Adjust equations to fix Swift 3 expression solving errors.

3.1.0

Added two new mark types.

3.0.1

Fixed animation glitches when changing mark types.

3.0.0: New behind the scenes implementation.

- The controllers and animation/path generation has been upgraded to
allow for the addition of new marks.
- Changing between marks can now be animated.
- Adjusted mixed states for radio to remove animation glitches.

2.2.6: Fixed issue #69

Multiple commits caused math issues by modifying the positioning
equations. Copied the original equations back in, and re-modified them
to keep build time low

Decreased Compile Time

@szotyi significantly improved project compile time!

Resolved mark layout issues.

A layout issue was occurring that would cause the mark to be shifted right and down by half the box line width. This became apparent at small sizes.

Playgrounds and bug fixes.

@rob-nash added a playground demo and fixed a rendering bug causing the checkbox to render outside its frame.

2.2.2

Bumped project version.

2.2.1: Converted from open to public.

I don’t see any reasons subclassing this is necessary. If there is a
reason I’ll change it back.